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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 Matrixmultiplication 
  9. {
  10.     public static void main(String[] args) 
  11.     {
  12.         Scanner scan = new Scanner(System.in);
  13.         int [][] a,b,c;
  14.         int size;
  15.         System.out.print("Enter the Size of the matrix :");
  16.         size = scan.nextInt();
  17.         a=new int[size][size];
  18. 		b=new int[size][size];
  19. 		c=new int[size][size];
  20.         System.out.println("Enter the elements of the First matrix");
  21.         for(int i=0;i<size;i++)
  22.         {
  23.             for(int j=0;j<size;j++)
  24.             {
  25.                 System.out.print("Enter the element a[" + i +"]["+ j + "] : ");
  26.                 a[i][j] = scan.nextInt();
  27.             }
  28.         }
  29.         System.out.println("Enter the elements of the Second matrix");
  30.         for(int i=0;i<size;i++)
  31.         {
  32.             for(int j=0;j<size;j++)
  33.             {
  34.                 System.out.print("Enter the element b[" + i +"]["+ j + "] : ");
  35.                 b[i][j] = scan.nextInt();
  36.             }
  37.         } 
  38.  
  39.         System.out.println("The Product of the two matrix is : ");
  40.         for(int i=0;i<size;i++)
  41.         {
  42.             for(int j=0;j<size;j++)
  43.             {
  44.                 int sum = 0;
  45.                 for(int k=0;k<size;k++)
  46.                 {
  47.                     sum +=(a[i][k] * b[k][j]);
  48.                 }
  49.                 c[i][j] = sum;
  50.                 System.out.print(c[i][j] + "\t");
  51.             }
  52.             System.out.println();
  53.         }         
  54.  
  55.     }
  56.  
  57. }
Success #stdin #stdout 0.06s 4386816KB
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stdin
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2

1 1
1 1

1 1
1 1
stdout
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Enter the Size of the matrix :Enter the elements of the First matrix
Enter the element a[0][0] : Enter the element a[0][1] : Enter the element a[1][0] : Enter the element a[1][1] : Enter the elements of the Second matrix
Enter the element b[0][0] : Enter the element b[0][1] : Enter the element b[1][0] : Enter the element b[1][1] : The Product of the two matrix is : 
2	2	
2	2
https://ideone.com/BktOi5
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
public

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