Multiplication of two Matrix
This is a simple java program
that teaches you for multiplying two matrix to each other. Here providing you Java source code with
understanding the Java developing application program. We are
going to make a simple program that will multiply two matrix. Two
dimensional array represents the matrix.
Now, make
this program, you have to declare two multidimensional array of type integer. Program uses two for
loops to get number of rows
and columns by using the array1.length. After getting both matrix then multiply
to it. Both matrix will be multiplied to each other by using 'for' loop. So
the output will be displayed on the screen command prompt by using the println()
method.
Here is the code of this program:
class MatrixMultiply{
public static void main(String[] args) {
int array[][] = {{5,6,7},{4,8,9}};
int array1[][] = {{6,4},{5,7},{1,1}};
int array2[][] = new int[3][3];
int x= array.length;
System.out.println("Matrix 1 : ");
for(int i = 0; i < x; i++) {
for(int j = 0; j <= x; j++) {
System.out.print(" "+ array[i][j]);
}
System.out.println();
}
int y= array1.length;
System.out.println("Matrix 2 : ");
for(int i = 0; i < y; i++) {
for(int j = 0; j < y-1; j++) {
System.out.print(" "+array1[i][j]);
}
System.out.println();
}
for(int i = 0; i < x; i++) {
for(int j = 0; j < y-1; j++) {
for(int k = 0; k < y; k++){
array2[i][j] += array[i][k]*array1[k][j];
}
}
}
System.out.println("Multiply of both matrix : ");
for(int i = 0; i < x; i++) {
for(int j = 0; j < y-1; j++) {
System.out.print(" "+array2[i][j]);
}
System.out.println();
}
}
}
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