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  1. /* package superBuBu */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. 	public static void main (String[] args) throws java.lang.Exception
  11. 	{
  12.  
  13. 		int valor = 1;
  14. 		int resto = -1;
  15.  
  16. 		StringBuilder sb = new StringBuilder();
  17.  
  18. 		if (valor == 0) {
  19. 			System.out.println("0");
  20. 		}
  21.  
  22. 		// enquanto o resultado da divisão por 2 for maior que 0 adiciona o resto ao início da String de retorno
  23. 		while (valor > 0) {
  24. 			resto = valor % 2;
  25. 			valor = valor / 2;
  26. 			sb.insert(0, resto);
  27. 		}
  28.  
  29.         String formatado = String.format("%04d", Integer.parseInt(sb.toString()));
  30.  
  31. 		System.out.println(formatado);
  32. 	}
  33. }
Success #stdin #stdout 0.08s 380160KB
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0001
https://ideone.com/iQGrpJ
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
public

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