lesson_3_classwork/homework_exr_1-6

import java.util.Scanner;
public class lesson_3_classwork {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        //Targil 1
        System.out.println("Enter number for the first exercise:");
        int user_num_1 = sc.nextInt();
        for (int i = 1; i <= user_num_1; ) {
            System.out.println(user_num_1 * i);
            i += user_num_1 - 1;   // שיטה שלא תאוהב כי אמרתה שלא עושים ככה, אבל זה למה שהגעתי בנתיים
        }

        //Targil 2
        int user_num_2, tempCounter = 0;
        System.out.println("Enter ten numbers separated by space for the second exercise:");
        for (int i = 0; i < 10; i += 1) {
            user_num_2 = sc.nextInt();
            if (user_num_2 % 2 == 1) {
                tempCounter += 1;
            }
        }
        System.out.println(tempCounter);

        //Targil 3
        System.out.println("Enter number for the third exercise:");
        int user_num_3 = sc.nextInt();
        for (int i = 1; i <= user_num_3; i += 1) {
            if (i % 3 == 0) {
                System.out.print(i + " ");
            }
        }
        System.out.println();

        //Targil 4
        System.out.println("Enter number for the fourth exercise:");
        int user_num_4 = sc.nextInt();
        for (int i = user_num_4; i > 0; i -= 1) {
            if (i % 3 == 0) {
                System.out.print(i + " ");
            }
        }
        System.out.println();

        //Targil 5
        System.out.println("Enter number for the fifth exercise:");
        int user_num_5 = sc.nextInt();
        for (int i = 0; i < user_num_5; i += 1) {
            if (i % 7 == 0) {
                System.out.println("Boom!");
            } else {
                System.out.print(i + " ");
            }
        }
        System.out.println();

        //Targil 6
        System.out.println("Enter number for the sixth exercise:");
        int user_num_6 = sc.nextInt();
        for (int i = 1; i <= user_num_6; i += 1) {
            int sumOfNums = i / 10 + i % 10;
            if (i % 3 == 0 && sumOfNums < 5) {
                System.out.print(i + " ");
            }
        }
    }
}