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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. 	static int size;
  11. 	static int matrixA [][] = new int [size][size];
  12. 	static Random randomNumber = new Random();
  13.  
  14. 	public static void main (String[] args) throws java.lang.Exception
  15. 	{
  16. 		Ideone.setSize() ;
  17. 		Ideone.fillMatrixA() ;
  18. 	}
  19.  
  20. 	static void setSize() 
  21. 	{
  22. 	    Scanner input = new Scanner( System.in );
  23. 	    System.out.println( "Enter size" );
  24. 	    size = input.nextInt();
  25. 	}
  26.  
  27. 	static void fillMatrixA() 
  28. 	{
  29. 		System.out.println( "length " + new String[7].length ) ;
  30. 		System.out.println( "matrixA.length " + matrixA.length ) ;
  31. 	    for (int i = 0; i < matrixA.length; i++) 
  32. 	    {
  33. 	        System.out.println();
  34. 	        for ( int j = 0 ; j < matrixA[i].length ; j++ ) 
  35. 	        {
  36. 		        matrixA[i][j] = randomNumber.nextInt(10);
  37. 		        System.out.println(matrixA[i][j]);
  38. 	        }
  39. 	    }
  40. 	}
  41.  
  42. }
Success #stdin #stdout 0.16s 51808KB
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stdin
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3
stdout
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Enter size
length 7
matrixA.length 0
https://ideone.com/YcfKUK
language:
Java (HotSpot 12)
created:
3 years ago
visibility:
secret

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