Solved

• Solved 1:

  package day08;

  public class LoopingStatmentDemo {

    public static void main(String[] args) {

      for (int i = 1; i <= 10; i++) {
        System.out.println("The value of i is : " + i);
      }

    }

  }

• Solved 2:

  package day08;

  public class LoopingStatmentDemo2 {

    public static void main(String[] args) {

      int i = 0;

      while (i <= 10) {
        System.out.println("The value of i is: " + i);
        i++;
      }

    }

  }

• Solved 3:

  package day08;

  public class LoopingStatmentDemo3 {

    public static void main(String[] args) {

      int i = 0;

      do {
        System.out.println("The value of i is:" + i);
        i++;
      } while (i <= 10);

    }

  }

• Solved 4:

    /**
     * Class Created for demoing additional conditions and truthTable
     * @author BharathwajSoundarara
     *
     */
    class Rat {
      int roomInBelly = 5;

      public void eatCheese(int bitesOfCheese) {
        // Keep eating as long as there is roomInBelly and some cheese
        // is left
        while (bitesOfCheese > 0 && roomInBelly > 0) {
          bitesOfCheese--;
          roomInBelly--;
        }
        System.out.println(bitesOfCheese + " pieces of cheese left");
      }
      public void showRoomInBelly() {
        System.out.println("Room in belly: " + roomInBelly);
      }
    }

    /**
     * Class for creating an instance of a Rat Class
     * @author BharathwajSoundarara
     *
     */
    public class RatDemo {
      public static void main(String[] args) {
        Rat rat = new Rat();
        rat.roomInBelly = 5;
        rat.eatCheese(10);
        // Calling Belly Capacity
        rat.showRoomInBelly();
      }
    }

• Solved 5:

  int n = 35;
  int result = 1;
  while (n > 0)
  {
      int d = n % 10;
      result *= d;
      n /= 10;
  }
  System.out.println(result);

• Solved 6:

    int count = 0;
  /* missing loop header */
  {
      if (count % 2 == 0)
      {
          System.out.println(count);
      }
      count++;
  }

Practice

1. Write a Java program that prints the first 10 natural numbers using a for loop.
2. Write a Java program that prints the first 10 natural numbers in reverse order using a while loop.
3. Write a Java program that prints the first 10 even numbers using a do-while loop.
4. Write a Java program that calculates the sum of first 10 natural numbers and prints the result.
5. Write a Java program that checks whether a predefined number (for example, 29) is a prime number or not, using a for loop. A prime number is a number that has exactly two distinct positive divisors: 1 and itself.
6. (Vinit) Rewrite using for loop:

  public class Test1
  {
      public static void main(String[] args)
      {
          int x = 5;
          while (x > 0)
          {
              System.out.println(x);
              x = x - 1;
          }
      }
  }

7.Rewrite using while loop:

  public class Test1
  {
      public static void main(String[] args)
      {
          for (int x = 1; x <= 10; x++)
              System.out.println(x);
      }
  }

8.The following code should print the values from 1 to 10 (inclusive) but has errors. Fix the errors so that the code works as intended.

  public class Test1
  {
      public static void main(String[] args)
      {
          int x = 1;
          while (x < 10)
          {
              System.out.println(x);
          }
      }
  }

Additional Practice: Refer here.