mohan
java code
1 Answer(s)      8 years ago
Posted in : Java Beginners

March 9, 2009 at 5:18 AM

Hi Friend,

Here is the java code into which we have created two 2 x 2 Matrices array1[2][2] and array2[2][2] and result matrix after multiplication is being saved in the third array arrayfinal[2][2]. Here is the code :

class Multiply2DMatrix{

public static void main(String[] args) {

int array1[][] = {{5,6},{4,8}};
int array2[][] = {{6,4},{5,3}};
int arrayfinal[][] = new int[2][2];

int x= array1.length;
System.out.println("Matrix 1 : ");
for(int i = 0; i < x; i++) {
for(int j = 0; j < x; j++) {
System.out.print(" "+ array1[i][j]);
}
System.out.println();
}
int y= array2.length;
System.out.println("Matrix 2 : ");
for(int i = 0; i < y; i++) {
for(int j = 0; j < y; j++) {
System.out.print(" "+array2[i][j]);
}
System.out.println();
}

for(int i = 0; i < x; i++) {
for(int j = 0; j < y; j++) {
for(int k = 0; k < y; k++){
// Matrix multiplication
arrayfinal[i][j] += array1[i][k]*array2[k][j];
}
}
}
System.out.println("Multiply of both matrix : ");
for(int i = 0; i < x; i++) {
for(int j = 0; j < y; j++) {
// Printing result matrix
System.out.print(" "+arrayfinal[i][j]);
}
System.out.println();
}
}
}

//-->

I hope that this will help you.

Thanks
RoseIndia Team

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