JNTU Hyderabad CSE/IT Java OOPS Week 2B - Multiplication of Two Matrices

Are you looking for JNTU Hyderabad CSE/IT solved java 2-2 lab assignments and week programs ? Here is the perfect resource for you . You can directly copy and paste the below code in a Java Editor to excecute the program.

Get the solutions for JNTU Btech Lab java programs for CSE and Information Technology branches . The resource includes the clear explanation of the code. The below code was uploaded only after the successful execution using Java Standard Edition. JNTU Hyderabad and affiliated colleges conducts a lab session every week for all B.tech Regular students. Here I'm giving solution for the Week 2 2nd program. The aim of the program is to find multiply the two matrices using a simple java program .You can also get more information about JNTU Java programs solutions on this site for all weeks.
Input: The elements of two 2X2 matrices are given as input.
This can be solved in java by implementing the following source code. With this, you have successfully completed
the week 2 second program of your Jntu CSE/IT 2-2 Syllabus.
//To multiply two matrices and store the result in 3rd matrix
class Mat//define class
{
public static void main(String args[])
{
int j,l=0,i;//declare some useful variables
int a[][]=new int[2][2];//create matrix a
int b[][]= new int[2][2];//create matrix b
for(i=0;i<2;i++)//for i=1,2
for(j=0;j<2;j++)//for j=1,2
a[i][j]=Integer.parseInt(args[l++]);//read the elements of a
for(i=0;i<2;i++)//for i=1,2
for(j=0;j<2;j++)//for j=1,2
b[i][j]=Integer.parseInt(args[l++]);//read the elements of a
for( i=0;i<2;i++)//for i=1,2
for( j=0;j<2;j++)//for j=1,2
{
int c[][]={{0,0},{0,0}};//initialise matrix c
for(int k=0;k<2;k++)//for k=1,2
{
c[i][j]=c[i][j]+(a[i][k]*b[k][j]); //calculate the product and store in c
}
System.out.println(c[i][j]);//display matrix c
}

}
}

The output will be as follows:
Output:
D:\education\java\programs>javac Matrix.java
D:\education\java\programs>java Matrix 1 2 3 4 1 2 3 4
Resultant matrix is
7
10
15
22

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