Java programs:Matrix Addition,Subtraction and Multiplication

Java programs:- Matrix Addition,Subtraction and Multiplication



[java]
class Matrix_Op
{
public static void main(String args[])
{
int i,j,k;
int mat1 [][]={ {20,21,12}, {23,24,25}, {26,27,28} };
int mat2 [][]={ {1,2,3}, {4,5,6}, {7,8,9} };
System.out.println("Operation ON Matrices \n1.Addition \n");
int sum [][] = new int [3][3];
for(i=0;i <3;i++)
{
for(j=0;j< 3;j++)
{
sum[i][j] = mat1[i][j] + mat2[i][j];
System.out.print("\t" + sum[i][j]);
}
System.out.println("\t");
}

System.out.println("2.Subtraction\n");
int diff[][] = new int[3][3];
for(i=0;i< 3;i++)
{
for(j=0;j< 3;j++)
{
diff [i][j] = mat1[i][j] – mat2[i][j];
System.out.print("\t"+ diff[i][j]);
}
System.out.println("\t");
}

System.out.println("3.Multiplication\n");
int prod[][] = new int[3][3];
for(i=0;i< 3;i++)
{
for(j=0;j< 3;j++)
{
prod[i][j] = 0;
{
for(k=0;k< 3;k++)
prod[i][j] = prod[i][j]+mat1[i][k]*mat2[k][j];
}
System.out.print("\t"+ prod[i][j]);
}
System.out.println("\t");

}
}
}
[/java]

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