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  1. import java.util.*;
  2. import java.lang.*;
  3.  
  4. class Main
  5. {
  6.     public static void main(String[] args){
  7.         int numberOfBits = 2;
  8.         LinkedList<int []> results = printBin(numberOfBits);
  9.         Iterator<int[]> i = results.iterator();
  10.         while(i.hasNext()){
  11.             int[] temp = i.next();
  12.             for(int j = 0; j < temp.length; j++){
  13.                 System.out.print(temp[j]);
  14.             }
  15.             System.out.println("");
  16.         }
  17.     }
  18.  
  19.  
  20.     public static LinkedList<int[]> printBin(int numberOfBits) {
  21. LinkedList<int[]> ret = new LinkedList<int[]>();
  22. int endMask = 1 << numberOfBits;
  23. for (int mask = 0 ; mask != endMask ; mask++) {
  24.     int[] combo = new int[numberOfBits];
  25.     for (int i = 0 ; i != numberOfBits ; i++) {
  26.         combo[i] = ((mask & (1 << i)) != 0) ? 1 : 0;
  27.     }
  28.     ret.add(combo);
  29. }
  30. return ret;
  31.  
  32.     }
  33. }
Success #stdin #stdout 0.07s 380160KB
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https://ideone.com/w9kTHs
language:
Java (HotSpot 12)
created:
12 years ago
visibility:
public

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