Example1Chapter3

package com.gmail.kudr641;

import java.util.Scanner;

public class Example1Chapter3 {

	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);

		String one = "***";
		String two = "+++";

		System.out.println("Input size:");
		int size = scanner.nextInt();

		scanner.close();

		for (int j = 0; j < 5; j++) {
			for (int i = 0; i < size; i++) {
				if (i % 2 == 0) {
					System.out.print(one);
				} else {
					System.out.print(two);
				}
			}
			System.out.println();
		}
	}
}

Example2Chapter3

package com.gmail.kudr641;

import java.util.Scanner;

public class Example2Chapter3 {

	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);

		System.out.println("Input number 4 < n < 16");
		int number = scanner.nextInt();
		int result = 1;

		scanner.close();

		if (4 > number || number > 16) {
			System.out.println("Incorrect number");
		} else {
			for (int i = 1; i <= number; i++) {
				result *= i;
			}
			System.out.println("Factorial:" + result);
		}
	}
}

Example3Chapter3

package com.gmail.kudr641;

public class Example3Chapter3 {

	public static void main(String[] args) {
		for (int i = 1; i <= 10; i++) {
			System.out.println(i + " * " + 5 + " = " + (i * 5));
		}
	}
}

Example4Chapter3

package com.gmail.kudr641;

import java.util.Scanner;

public class Example4Chapter3 {

	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);

		System.out.println("Input size: ");
		int size = scanner.nextInt();

		scanner.close();

		for (int i = 1; i <= size; i++) {
			for (int j = 1; j <= size; j++) {
				char let = ' ';
				if (i == 1 || j == 1 || i == size || j == size) {
					let = '*';
				} else {
					let = ' ';
				}
				System.out.print(let);
			}
			System.out.println();
		}
	}
}