Why do we need nested loops in a Java program to add two matrices?

Matrices are 2D structures, so you need one loop for rows and another for columns. Nested loops help access each element using [i][j] format to add corresponding values from both matrices.

What is the logic behind Java program addition of two matrices?

The logic is to add the elements at the same positions in both matrices. So, sum[i][j] = matrix1[i][j] + matrix2[i][j] for all valid i and j. This works only for same-sized matrices.

Is it possible to create a Java program to add two matrices with different sizes?

No, you can’t directly add matrices of different sizes in Java. Both matrices should have the same number of rows and columns. If they don’t, your program may throw an error or give incorrect output.

Do I need to check matrix size before addition in Java?

Absolutely. Before adding two matrices in Java, make sure both have the same number of rows and columns. If not, your program may throw an ArrayIndexOutOfBoundsException or give wrong results.

How can I test my Java program to add two matrices?

You can try adding small 2x2 or 3x3 matrices manually and compare the program output with the expected result. This helps confirm that your logic and loops are working correctly.

Java Program to Add Two Matrices (3 Ways)

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