public static MyClass {
    private static volatile ProcessManager singleton = null;
    
    public static ProcessManager getInstance() throws Exception {
        if (singleton == null) {
            synchronized (MyClass.class) {
                if (singleton == null) {
                    singleton = new ProcessManager();
                }
            }
        }
        return singleton;
    }
}

The double-checking was invented prior to Java5.

The purpose is if the field isn't null, you don't have to synchronize. But since the java memory model specification was cleaned up and Synchronize/Volatile were given much better specification and semantics it is totally useless boilerplate that you should only write if you have to support Java4. There is a Google Tech Talk that covers this.

By cody, 2017-12-12 08:02:01
/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.


   O | O | O 
  -----------
   O | O | O 
  -----------
   O | O | O 
     

 */
package tictactoe;

import java.util.Scanner;

public class TicTacToe {

    /**
     * @param args the command line arguments
     * @throws java.lang.InterruptedException
     */
    public static void main(String[] args) throws InterruptedException {
        Scanner input = new Scanner(System.in);
        String a1 = "1";
        String a2 = "2";
        String a3 = "3";
        String a4 = "4";
        String a5 = "5";
        String a6 = "6";
        String a7 = "7";
        String a8 = "8";
        String a9 = "9";
        int inO;
        int inX = 0;
        boolean winner = false;
        PrintBoard(a1,a2,a3,a4,a5,a6,a7,a8,a9);
        System.out.printf("How to play - wait for your turn and when it comes write the number of the field that you want to draw in (from 1 to 9)\n");
        System.out.printf("Player O's turn: ");
        inO = input.nextInt();
        while (true) {
            switch (inO) {
                case 1:
                    if (a1 == "1") {
                        a1 = "O";
                    }
                    break;
                case 2:
                    if (a2 == "2") {
                    a2 = "O";
                    }
                    break;
                case 3:
                    if (a3 == "3") {
                    a3 = "O";
                    }
                    break;
                case 4:
                    if (a4 == "4") {
                    a4 = "O";
                    }
                    break;
                case 5:
                    if (a5 == "5") {
                    a5 = "O";
                    }
                    break;
                case 6:
                    if (a6 == "6") {
                    a6 = "O";
                    }
                    break;
                case 7:
                    if (a7 == "7") {
                    a7 = "O";
                    }
                    break;
                case 8:
                    if (a8 == "8") {
                    a8 = "O";                        
                    }
                    break;
                case 9:
                    if (a9 == "9") {
                    a9 = "O";
                    }
                    break;
                default:
                    System.out.printf("An error occured. Please accept it politely and restart the game.");
                    break;
            }
            System.out.printf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n");
            if (null != Winners(a1,a2,a3,a4,a5,a6,a7,a8,a9))switch (Winners(a1,a2,a3,a4,a5,a6,a7,a8,a9)) {
                case "NONE":
                    if (a1 != "1" && a2 != "2" && a3 != "3" && a4 != "4" && a5 != "5" && a6 != "6" && a7 != "7" && a8 != "8" && a9 != "9") {
                        winner = true;
                        System.out.println("DRAW!");
                        Thread.sleep(3000);
                        break;
                    } else {
                    PrintBoard(a1,a2,a3,a4,a5,a6,a7,a8,a9);
                    System.out.printf("Player X's turn: ");
                    inX = input.nextInt();
                    break;
                    }
                case "X":
                    winner = true;
                    System.out.println("X HAS WON!!!");
                    Thread.sleep(3000);
                    break;
                case "O":
                    winner = true;
                    System.out.printf("O HAS WON!!!");
                    Thread.sleep(3000);
                    break;
                default:
                    break;
            }
            if (winner) {
                break;
            }
            switch (inX) {
                case 1:
                    if (a1 == "1") {
                    a1 = "X";
                    }
                    break;
                case 2:
                    if (a2 == "2") {
                    a2 = "X";
                    }
                    break;
                case 3:
                    if (a3 == "3") {
                    a3 = "X";
                    }
                    break;
                case 4:
                    if (a4 == "4") {
                    a4 = "X";
                    }
                    break;
                case 5:
                    if (a5 == "5") {
                    a5 = "X";
                    }
                    break;
                case 6:
                    if (a6 == "6") {
                    a6 = "X";
                    }
                    break;
                case 7:
                    if (a7 == "7") {
                    a7 = "X";
                    }
                    break;
                case 8:
                    if (a8 == "8") {
                    a8 = "X";
                    }
                    break;
                case 9:
                    if (a9 == "9") {
                    a9 = "X";
                    }
                    break;
                default:
                    System.out.printf("An error occured. Please accept it politely and restart the game.");
                    break;
            }
            System.out.printf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n");
            if (null != Winners(a1,a2,a3,a4,a5,a6,a7,a8,a9))switch (Winners(a1,a2,a3,a4,a5,a6,a7,a8,a9)) {
                case "NONE":
                    if (a1 != "1" && a2 != "2" && a3 != "3" && a4 != "4" && a5 != "5" && a6 != "6" && a7 != "7" && a8 != "8" && a9 != "9") {
                        winner = true;
                        System.out.println("DRAW!");
                        Thread.sleep(3000);
                        break;
                    } else {
                    PrintBoard(a1,a2,a3,a4,a5,a6,a7,a8,a9);
                    System.out.printf("Player O's turn: ");
                    inO = input.nextInt();
                    break;
                    }
                case "X":
                    winner = true;
                    System.out.println("X HAS WON!!!");
                    Thread.sleep(3000);
                    break;
                case "O":
                    winner = true;
                    System.out.println("O HAS WON!!!");
                    Thread.sleep(3000);
                    break;
                default:
                    break;
            }
            if (winner) {
                break;
            }
        }    
    }
    
    public static void PrintBoard(String f1, String f2, String f3, String f4, String f5, String f6, String f7, String f8, String f9) {  
        System.out.printf("   %s | %s | %s \n",f1,f2,f3);
        System.out.printf("  ----------- \n");
        System.out.printf("   %s | %s | %s \n",f4,f5,f6);
        System.out.printf("  ----------- \n");
        System.out.printf("   %s | %s | %s \n",f7,f8,f9);
        System.out.printf(" \n");
    }
    
    public static String Winners(String f1, String f2, String f3, String f4, String f5, String f6, String f7, String f8, String f9) {
        if (f1 == f2 && f2 == f3 && f3 == "O") {
            return "O";
        } else if (f4 == f5 && f5 == f6 && f6 == "O") {
            return "O";
        } else if (f7 == f8 && f8 == f9 && f9 == "O") {
            return "O";
        } else if (f1 == f4 && f4 == f7 && f7 == "O") {
            return "O";
        } else if (f2 == f5 && f5 == f8 && f8 == "O") {
            return "O";
        } else if (f3 == f6 && f6 == f9 && f9 == "O") {
            return "O";
        } else if (f1 == f5 && f5 == f9 && f9 == "O") {
            return "O";
        } else if (f3 == f5 && f5 == f7 && f7 == "O") {
            return "O";
        } else if (f1 == f2 && f2 == f3 && f3 == "X") {
            return "X";
        } else if (f4 == f5 && f5 == f6 && f6 == "X") {
            return "X";
        } else if (f7 == f8 && f8 == f9 && f9 == "X") {
            return "X";
        } else if (f1 == f4 && f4 == f7 && f7 == "X") {
            return "X";
        } else if (f2 == f5 && f5 == f8 && f8 == "X") {
            return "X";
        } else if (f3 == f6 && f6 == f9 && f9 == "X") {
            return "X";
        } else if (f1 == f5 && f5 == f9 && f9 == "X") {
            return "X";
        } else if (f3 == f5 && f5 == f7 && f7 == "X") {
            return "X";
        } else {
            return "NONE";
        }
    }
}

There are sooo many problems with this...

By umnikos, 2017-12-12 17:27:24
try{
    //...
    getMyDataFromServer();
    //...
}catch(Excepion e){
    // :D
}

HMM FIXED BUG!

By H20, 2017-12-23 11:12:50
 private void EnableGPSAutoMatically() {
        GoogleApiClient googleApiClient = null;
        if (googleApiClient == null) {
            oogleApiClient = new GoogleApiClient.Builder(this)
                    .addApi(LocationServices.API).addConnectionCallbacks(this)
                    .addOnConnectionFailedListener(this).build();
            /* about 50 lines of code were here ... 
             * all depends on this if statement ... !
             * Actually the whole method depends on this if statement ! */
                    }
                }
            });
        }
}

what if that mysterious power change it to be not null !! It gonna be a holly object and You should not "new" it anymore ?! damn ... :)))

By Anonymous, 2018-03-28 11:31:15
public static int[] xxx(String filename) throws IOException{
	int[] f = new int[26];
	BufferedReader in = new BufferedReader(new FileReader(filename));
	String line;
	while((line = in.readLine()) != null){
		line = line.toUpperCase();
		for(char ch:line.toCharArray()){
			if(Character.isLetter(ch)){
				f[ch - 'A']++;
			}
		}
	}
	in.close();
	return f;
}
By Anonymous, 2017-12-15 16:08:38
Long timestamp = Instant.now().toEpochMilli(); // fallback
if (oTimestamp instanceof Integer)
    timestamp = (Integer) oTimestamp *1L;
else
    if (oTimestamp instanceof Long)
        timestamp = (Long) oTimestamp * 1L;
By Anonymous, 2017-12-12 08:13:40
public boolean logout(String token)
{
    LogedUser user = logedUsers.remove(token);
    return (user != null) ? true : false;
}
By Slacki, 2015-11-17 17:58:53
private HashMap<String, Tuple6<float[], String[], String[], String[], String[], String>> memberNameChangedToProtectTheInnocent = null;
By Anonymous, 2017-12-12 12:13:22

"  ".split(" ");

Very weird code found multiple times in old code base.

By heldt, 2017-12-12 12:03:14
if (baza[mCurrentIndex] == Boolean.TRUE) {
            if (mCurrentIndex != baza.length-1) {
                up();
                nextQuestion();
            }

            if (mCurrentIndex == baza.length) {
                WypiszWynik();
            }

        }

so you have an array of booleans and you're comparing it to Boolean.TRUE why

By pain, 2017-10-31 21:58:54
  /** 
   * Deserializes the contents of the incoming message buffer {@code b}. 
   * 
   * @return deserialised object
   * @throws UnsupportedEncodingException If the named charset is not supported
   */
  Object r() throws UnsupportedEncodingException{
    int i=0, n, t=b[j++];
    if(t<0)
      switch(t){
        case -1:
          return rb();
        case (-2):
          return rg();
        case -4:
          return b[j++];
        case -5:
          return rh();
        case -6:
          return ri();
        case -7:
          return rj();
        case -8:
          return re();
        case -9:
          return rf();
        case -10:
          return rc();
        case -11:
          return rs();
        case -12:
          return rp();
        case -13:
          return rm();
        case -14:
          return rd();
        case -15:
          return rz();
        case -16:
          return rn();
        case -17:
          return ru();
        case -18:
          return rv();
        case -19:
          return rt();
      }
    if(t>99){
      if(t==100){
        rs();
        return r();
      }
      if(t<104)
        return b[j++]==0&&t==101?null:"func";
      if(t>105)
        r();
      else
        for(n=ri();i<n;i++)
          r();
      return "func";
    }
    if(t==99)
      return new Dict(r(),r());
    j++;
    if(t==98)
      return new Flip((Dict)r());
    n=ri();
    switch(t){
      case 0:
        Object[] L=new Object[n];
        for(;i<n;i++)
          L[i]=r();
        return L;
      case 1:
        boolean[] B=new boolean[n];
        for(;i<n;i++)
          B[i]=rb();
        return B;
      case 2: {
        UUID[] G=new UUID[n];
        for(;i<n;i++)
          G[i]=rg();
        return G;
      }
      case 4:
        byte[] G=new byte[n];
        for(;i<n;i++)
          G[i]=b[j++];
        return G;
      case 5:
        short[] H=new short[n];
        for(;i<n;i++)
          H[i]=rh();
        return H;
      case 6:
        int[] I=new int[n];
        for(;i<n;i++)
          I[i]=ri();
        return I;
      case 7:
        long[] J=new long[n];
        for(;i<n;i++)
          J[i]=rj();
        return J;
      case 8:
        float[] E=new float[n];
        for(;i<n;i++)
          E[i]=re();
        return E;
      case 9:
        double[] F=new double[n];
        for(;i<n;i++)
          F[i]=rf();
        return F;
      case 10:
        char[] C=new String(b,j,n,encoding).toCharArray();
        j+=n;
        return C;
      case 11:
        String[] S=new String[n];
        for(;i<n;i++)
          S[i]=rs();
        return S;
      case 12:
        Timestamp[] P=new Timestamp[n];
        for(;i<n;i++)
          P[i]=rp();
        return P;
      case 13:
        Month[] M=new Month[n];
        for(;i<n;i++)
          M[i]=rm();
        return M;
      case 14:
        Date[] D=new Date[n];
        for(;i<n;i++)
          D[i]=rd();
        return D;
      case 15:
        java.util.Date[] Z=new java.util.Date[n];
        for(;i<n;i++)
          Z[i]=rz();
        return Z;
      case 16:
        Timespan[] N=new Timespan[n];
        for(;i<n;i++)
          N[i]=rn();
        return N;
      case 17:
        Minute[] U=new Minute[n];
        for(;i<n;i++)
          U[i]=ru();
        return U;
      case 18:
        Second[] V=new Second[n];
        for(;i<n;i++)
          V[i]=rv();
        return V;
      case 19:
        Time[] T=new Time[n];
        for(;i<n;i++)
          T[i]=rt();
        return T;
    }
    return null;
  }

Manually maintained open-source code on GitHub. Looks like decompiled from obfuscated binary, they just reformatted it, added some comments and now are making manual changes. Current version: https://github.com/KxSystems/javakdb/blob/master/src/kx/c.java Original version: https://github.com/KxSystems/javakdb/blob/c9afe6fa32d7d3e3cddabdc9bd43f0155a5d2a1b/src/kx/c.java

By KxSystems, 2017-12-13 17:19:57
private static final double RESULT_OF_DIVISION_BY_0 = 9.99;

public static double getPercentageDifference(long currentResult, long previousResult) {
    if (previousResult == 0 && currentResult == 0) {
        return 0;
    } else if (previousResult == 0) {
        return RESULT_OF_DIVISION_BY_0;
    } else {
        return (currentResult - previousResult) * 1.0 / previousResult;
    }
}
By Anonymous, 2017-12-20 10:56:50
#266 Java +17
        //JSONObject input;
        
        String givenName = input.get("propName") != null ? (String)input.get("propName") : null;

WHAT DA FUCK ASSHOLES

By Anonymous, 2018-03-15 15:28:55
/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.


   O | O | O 
  -----------
   O | O | O 
  -----------
   O | O | O 
     

 */
package tictactoe;

import java.util.Scanner;

public class TicTacToe {

    /**
     * @param args the command line arguments
     * @throws java.lang.InterruptedException
     */
    public static void main(String[] args) throws InterruptedException {
        Scanner input = new Scanner(System.in);
        String a1 = "1";
        String a2 = "2";
        String a3 = "3";
        String a4 = "4";
        String a5 = "5";
        String a6 = "6";
        String a7 = "7";
        String a8 = "8";
        String a9 = "9";
        int inO;
        int inX = 0;
        boolean winner = false;
        PrintBoard(a1,a2,a3,a4,a5,a6,a7,a8,a9);
        System.out.printf("How to play - wait for your turn and when it comes write the number of the field that you want to draw in (from 1 to 9)\n");
        System.out.printf("Player O's turn: ");
        inO = input.nextInt();
        while (true) {
            switch (inO) {
                case 1:
                    if (a1 == "1") {
                        a1 = "O";
                    }
                    break;
                case 2:
                    if (a2 == "2") {
                    a2 = "O";
                    }
                    break;
                case 3:
                    if (a3 == "3") {
                    a3 = "O";
                    }
                    break;
                case 4:
                    if (a4 == "4") {
                    a4 = "O";
                    }
                    break;
                case 5:
                    if (a5 == "5") {
                    a5 = "O";
                    }
                    break;
                case 6:
                    if (a6 == "6") {
                    a6 = "O";
                    }
                    break;
                case 7:
                    if (a7 == "7") {
                    a7 = "O";
                    }
                    break;
                case 8:
                    if (a8 == "8") {
                    a8 = "O";                        
                    }
                    break;
                case 9:
                    if (a9 == "9") {
                    a9 = "O";
                    }
                    break;
                default:
                    System.out.printf("An error occured. Please accept it politely and restart the game.");
                    break;
            }
            System.out.printf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n");
            if (null != Winners(a1,a2,a3,a4,a5,a6,a7,a8,a9))switch (Winners(a1,a2,a3,a4,a5,a6,a7,a8,a9)) {
                case "NONE":
                    if (a1 != "1" && a2 != "2" && a3 != "3" && a4 != "4" && a5 != "5" && a6 != "6" && a7 != "7" && a8 != "8" && a9 != "9") {
                        winner = true;
                        System.out.println("DRAW!");
                        Thread.sleep(3000);
                        break;
                    } else {
                    PrintBoard(a1,a2,a3,a4,a5,a6,a7,a8,a9);
                    System.out.printf("Player X's turn: ");
                    inX = input.nextInt();
                    break;
                    }
                case "X":
                    winner = true;
                    System.out.println("X HAS WON!!!");
                    Thread.sleep(3000);
                    break;
                case "O":
                    winner = true;
                    System.out.printf("O HAS WON!!!");
                    Thread.sleep(3000);
                    break;
                default:
                    break;
            }
            if (winner) {
                break;
            }
            switch (inX) {
                case 1:
                    if (a1 == "1") {
                    a1 = "X";
                    }
                    break;
                case 2:
                    if (a2 == "2") {
                    a2 = "X";
                    }
                    break;
                case 3:
                    if (a3 == "3") {
                    a3 = "X";
                    }
                    break;
                case 4:
                    if (a4 == "4") {
                    a4 = "X";
                    }
                    break;
                case 5:
                    if (a5 == "5") {
                    a5 = "X";
                    }
                    break;
                case 6:
                    if (a6 == "6") {
                    a6 = "X";
                    }
                    break;
                case 7:
                    if (a7 == "7") {
                    a7 = "X";
                    }
                    break;
                case 8:
                    if (a8 == "8") {
                    a8 = "X";
                    }
                    break;
                case 9:
                    if (a9 == "9") {
                    a9 = "X";
                    }
                    break;
                default:
                    System.out.printf("An error occured. Please accept it politely and restart the game.");
                    break;
            }
            System.out.printf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n");
            if (null != Winners(a1,a2,a3,a4,a5,a6,a7,a8,a9))switch (Winners(a1,a2,a3,a4,a5,a6,a7,a8,a9)) {
                case "NONE":
                    if (a1 != "1" && a2 != "2" && a3 != "3" && a4 != "4" && a5 != "5" && a6 != "6" && a7 != "7" && a8 != "8" && a9 != "9") {
                        winner = true;
                        System.out.println("DRAW!");
                        Thread.sleep(3000);
                        break;
                    } else {
                    PrintBoard(a1,a2,a3,a4,a5,a6,a7,a8,a9);
                    System.out.printf("Player O's turn: ");
                    inO = input.nextInt();
                    break;
                    }
                case "X":
                    winner = true;
                    System.out.println("X HAS WON!!!");
                    Thread.sleep(3000);
                    break;
                case "O":
                    winner = true;
                    System.out.println("O HAS WON!!!");
                    Thread.sleep(3000);
                    break;
                default:
                    break;
            }
            if (winner) {
                break;
            }
        }    
    }
    
    public static void PrintBoard(String f1, String f2, String f3, String f4, String f5, String f6, String f7, String f8, String f9) {  
        System.out.printf("   %s | %s | %s \n",f1,f2,f3);
        System.out.printf("  ----------- \n");
        System.out.printf("   %s | %s | %s \n",f4,f5,f6);
        System.out.printf("  ----------- \n");
        System.out.printf("   %s | %s | %s \n",f7,f8,f9);
        System.out.printf(" \n");
    }
    
    public static String Winners(String f1, String f2, String f3, String f4, String f5, String f6, String f7, String f8, String f9) {
        if (f1 == f2 && f2 == f3 && f3 == "O") {
            return "O";
        } else if (f4 == f5 && f5 == f6 && f6 == "O") {
            return "O";
        } else if (f7 == f8 && f8 == f9 && f9 == "O") {
            return "O";
        } else if (f1 == f4 && f4 == f7 && f7 == "O") {
            return "O";
        } else if (f2 == f5 && f5 == f8 && f8 == "O") {
            return "O";
        } else if (f3 == f6 && f6 == f9 && f9 == "O") {
            return "O";
        } else if (f1 == f5 && f5 == f9 && f9 == "O") {
            return "O";
        } else if (f3 == f5 && f5 == f7 && f7 == "O") {
            return "O";
        } else if (f1 == f2 && f2 == f3 && f3 == "X") {
            return "X";
        } else if (f4 == f5 && f5 == f6 && f6 == "X") {
            return "X";
        } else if (f7 == f8 && f8 == f9 && f9 == "X") {
            return "X";
        } else if (f1 == f4 && f4 == f7 && f7 == "X") {
            return "X";
        } else if (f2 == f5 && f5 == f8 && f8 == "X") {
            return "X";
        } else if (f3 == f6 && f6 == f9 && f9 == "X") {
            return "X";
        } else if (f1 == f5 && f5 == f9 && f9 == "X") {
            return "X";
        } else if (f3 == f5 && f5 == f7 && f7 == "X") {
            return "X";
        } else {
            return "NONE";
        }
    }
}

There are so many problems with this...

By umnikos, 2017-12-12 17:38:50
	public static int findSplitVariable(LinkedList<ByteDataRow> matrix) {
		LinkedList<ByteDataRow> list = new LinkedList<ByteDataRow>();
		int maxNoOfZeros = 0;
		int maxNoOfOnes = 0;
		int varId = -1;
		int[] NoOfOnesInColumn = new int[matrix.get(0).getInVars().length];


		for (ByteDataRow bdr : matrix) {
			int tmpNoOfZeros = bdr.getNumberOfZeros();
			if (maxNoOfZeros < tmpNoOfZeros) {
				list.clear();
				list.add(bdr.clone());
				maxNoOfZeros = tmpNoOfZeros;
			} else if (maxNoOfZeros == tmpNoOfZeros) {
				list.add(bdr.clone());
			}
		}

		for (ByteDataRow bdr : list) {
			byte[] vars = bdr.getInVars();
			for (int i = 0; i < vars.length; i++) {
				NoOfOnesInColumn[i] = NoOfOnesInColumn[i]
						+ Byte.compare(vars[i], Byte.parseByte("0"));
				if (NoOfOnesInColumn[i] > maxNoOfOnes) {
					maxNoOfOnes = NoOfOnesInColumn[i];
					varId = i;
				}
			}
		}

		return varId;
	}

	public static int findSplitVariable(LinkedList<ByteDataRow> matrix, int varIdx) {
		LinkedList<ByteDataRow> list = new LinkedList<ByteDataRow>();
		int maxNoOfZeros = 0;
		int maxNoOfOnes = 0;
		int varId = -1;
		int[] NoOfOnesInColumn = new int[matrix.get(0).getInVars().length];

		// Wybierz kostkÍ z najwiÍkszπ liczbπ zer.
		for (ByteDataRow bdr : matrix) {
			int tmpNoOfZeros = bdr.getNumberOfZeros();
			if (maxNoOfZeros < tmpNoOfZeros) {
				list.clear();
				list.add(bdr.clone());
				maxNoOfZeros = tmpNoOfZeros;
			} else if (maxNoOfZeros == tmpNoOfZeros) {
				list.add(bdr.clone());
			}
		}

		for (ByteDataRow bdr : list) {
			byte[] vars = bdr.getInVars();
			for (int i = 0; i < vars.length; i++) {
				NoOfOnesInColumn[i] = NoOfOnesInColumn[i]
						+ Byte.compare(vars[i], Byte.parseByte("0"));
				if (NoOfOnesInColumn[i] > maxNoOfOnes) {
					maxNoOfOnes = NoOfOnesInColumn[i];
					varId = i;
				}
			}
		}

		return varId;
	}

There are two methods findSplitVariable. Second one takes extra parameter (varIdx) that is not used anywhere.

By Paul, 2018-02-17 14:47:37