Java | How To Program 9th Edition Exercise Solutions

Exercise 6.1: Write a Java class that represents a rectangle with width and height attributes.

public class PrintNumbers { public static void main(String[] args) { int i = 1; while (i <= 10) { System.out.println(i); i++; } } } java how to program 9th edition exercise solutions

public class TwoDArrayExample { public static void main(String[] args) { int[][] matrix = {{1, 2}, {3, 4}}; for (int i = 0; i < matrix.length; i++) { for (int j = 0; j < matrix[i].length; j++) { System.out.println(matrix[i][j]); } } } } Exercise 6

Solution:

public class PrintNumbers { public static void main(String[] args) { for (int i = 1; i <= 10; i++) { System.out.println(i); } } } Exercise 3.2: Write a Java application that uses a while loop to print the numbers 1 to 10. Solution:

public class ArrayExample { public static void main(String[] args) { int[] scores = {1, 2, 3, 4, 5}; for (int i = 0; i < scores.length; i++) { System.out.println(scores[i]); } } } Exercise 5.2: Write a Java application that creates a two-dimensional array and prints its elements.

Solution: