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  1. /* package whatever; // don't place package name! */
  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.         int [][] Matriz = new int [5][5];
  13.         int [] diagonal = new int[5];
  14.  
  15.         Matriz[0][0] = 1;
  16.         Matriz[0][1] = 3;
  17.         Matriz[0][2] = 6;
  18.         Matriz[0][3] = 8;
  19.         Matriz[0][4] = 7;
  20.         Matriz[1][0] = 3;
  21.         Matriz[1][1] = 7;
  22.         Matriz[1][2] = 8;
  23.         Matriz[1][3] = 0;
  24.         Matriz[1][4] = 3;
  25.         Matriz[2][0] = 2;
  26.         Matriz[2][1] = 4;
  27.         Matriz[2][2] = 3;
  28.         Matriz[2][3] = 6;
  29.         Matriz[2][4] = 7;
  30.         Matriz[3][0] = 8;
  31.         Matriz[3][1] = 9;
  32.         Matriz[3][2] = 1;
  33.         Matriz[3][3] = 3;
  34.         Matriz[3][4] = 5;
  35.         Matriz[4][0] = 5;
  36.         Matriz[4][1] = 6;
  37.         Matriz[4][2] = 7;
  38.         Matriz[4][3] = 8;
  39.         Matriz[4][4] = 5;
  40.  
  41.         for(int i = 0; i<5; i++ ){
  42.             diagonal[i] = Matriz[i][i];
  43.         }
  44.  
  45.         for(int i = 0; i<5; i++ ){
  46.             Matriz[i][i] = diagonal[4-i];
  47.         }
  48.  
  49.         for(int i = 0; i<5; i++ ){
  50.             for(int j=0; j<5; j++){
  51.                 System.out.print(Matriz[i][j]+" ");
  52.             } 
  53.             System.out.println();
  54.         }
  55. 	}
  56. }
Success #stdin #stdout 0.1s 320320KB
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stdin
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Standard input is empty
stdout
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5 3 6 8 7 
3 3 8 0 3 
2 4 3 6 7 
8 9 1 7 5 
5 6 7 8 1
https://ideone.com/17jQk3
language:
Java (HotSpot 12)
created:
9 years ago
visibility:
public

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