Added Matrix Multiplication Program

Author: iamarav

Other-Java-Programs/MatrixMultiplication.java

@@ -0,0 +1,60 @@
+import java.util.Scanner;
+
+public class MatrixMultiplication {
+	
+	public static void main(String[] args) {
+		int lm1=1, hm1=1, lm2=1, hm2=1; //length of matrices 1/2; height of matrices 1/2
+		//minimum length is 1
+		
+		Scanner getArrayLength = new Scanner(System.in);
+		System.out.println("Enter length and height of Array 1: ");
+		lm1 = getArrayLength.nextInt();
+		hm1 = getArrayLength.nextInt();
+
+		System.out.println("Enter length and height of Array 1: ");
+		lm2 = getArrayLength.nextInt();
+		hm2 = getArrayLength.nextInt();
+		
+		getArrayLength.close();
+		
+		double array1[][] = new double[lm1][hm1];
+		double array2[][] = new double[lm2][hm2];
+		
+		//enter elements in array 1
+		System.out.println("Enter the elements of first array: ");
+		Scanner sm = new Scanner(System.in);
+		for(int x = 0; x <lm1; x++) {
+			for (int y = 0; y< hm1; y++) {
+				array1[x][y]= sm.nextDouble();
+			}
+		}
+
+		//enter elements in array 1
+		System.out.println("---\nEnter the elements of second array: ");
+		for(int x = 0; x <lm2; x++) {
+			for (int y = 0; y< hm2; y++) {
+				array2[x][y]= sm.nextDouble();
+			}
+		}
+		sm.close(); // closing the scanner
+		
+		multiplication(array1, array2, lm1, lm2, hm1, hm2);
+		
+		System.out.println("---\nThe Program has ended.");
+	}
+	
+	static double multiplication(double[][] array1, double[][] array2, int lm1, int lm2, int hm1, int hm2) {
+		double result = 0, temp=0;
+		for(int i=0;i<lm1;i++) {
+			for(int j=0; j<hm2; j++) {
+			temp = array1[i][j]* array2[j][i];
+			result = result + temp;
+			System.out.println(array1[i][j] +" * "+ array2[j][i]+ " temp = "+temp+" res = "+result);
+
+			}
+		}
+		System.out.println("The final result of multiplication is: "+result);
+		return result;
+	}
+	
+}