Take Two Matrices And Add Them Together

I had to make a program that would take two matrices and add them together but I get red lines under certain parts causing me not able to run the program . Here is my code :

import java.util.Scanner;
public class Matrix {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
final int N = 3;
System.out.print("Enter Matrix 1: ");

[Code] ....

And here are the segments that are showing red lines :

if (i == m1.length / 2);
System.out.print(" = ");
else
System.out.print(" ");

And here

System.out.println("
The Matrix are added as followed ");
printResult(matrix1, matrix2, resultMatrix, " + ");