Question

How to print the corners of a matrix in Java

Answer 1

import java.util.Arrays;
  
public class MatrixCorners {
    public static void printMatrixCorners(int[][] matrix) {
        System.out.println("left top corner: " + matrix[0][0]);
        System.out.println("right top corner: " + matrix[0][matrix[0].length - 1]);
        System.out.println("left bottom corner: " + matrix[matrix.length - 1][0]);
        System.out.println("right bottom corner: " + matrix[matrix.length - 1][matrix[0].length - 1]);
    }
 
    public static void main(String[] args) {
        int[][] matrix = {
            { 1, 2, 3, 4 },
            { 5, 6, 7, 8 },
            { 9, 3, 2, 0 }
        };
  
        printMatrixCorners(matrix);
    }
}
  
  
    
/*
run:
    
left top corner: 1
right top corner: 4
left bottom corner: 9
right bottom corner: 0
    
*/

 

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