5 easy java exercises with solution.

 6. Write a Java program to print the sum (addition), multiply, subtract, divide and remainder of two numbers.

-->

import java.util.Scanner;

public class Main {

      public static void main(String[] args) {

          Scanner sc = new Scanner(System.in);

          System.out.println("Enter the first number");

          float firstNumber = sc.nextFloat();

          System.out.println("Enter the second number");

          float secondNumber = sc.nextFloat();

          float sum = firstNumber + secondNumber;

          float multiply = firstNumber * secondNumber;

          float substract = firstNumber - secondNumber;

          float divide = firstNumber / secondNumber;

          float remainder = firstNumber % secondNumber;

      `   System.out.println(sum);

          System.out.println(multiply);

          System.out.println(substract);

          System.out.println(divide);

          System.out.println(remainder);

     }

}

7. Write a Java program that takes a number as input and prints its multiplication table upto 10.

-->

import java.util.Scanner;

public class Main {

      public static void main(String[] args) {

          Scanner sc = new Scanner(System.in);

          System.out.println("Enter a Number");

          int number = sc.nextInt();

          System.out.print(number + " *  1 = ");

          System.out.println(number * 1);

          System.out.print(number + " *  2 = ");

          System.out.println(number * 2);

          System.out.print(number + " *  3 = ");

          System.out.println(number * 3);

          System.out.print(number + " *  4 = ");

          System.out.println(number * 4);

          System.out.print(number + " *  5 = ");

          System.out.println(number * 5);

          System.out.print(number + " *  6 = ");

          System.out.println(number * 6);

          System.out.print(number + " *  7 = ");

          System.out.println(number * 7);

          System.out.print(number + " *  8 = ");

          System.out.println(number * 8);

          System.out.print(number + " *  9 = ");

          System.out.println(number * 9);

          System.out.print(number + " * 10 = ");

          System.out.println(number * 10);

     }

}

8. Write a Java program to display the following pattern.

Sample Pattern :

   J    a   v     v  a                                                  
   J   a a   v   v  a a                                                 
J  J  aaaaa   V V  aaaaa                                                
 JJ  a     a   V  a     a

-->

public class Main {
  public static void main(String[] args) {
  System.out.println("   J    a   v     v  a    ");
  System.out.println("   J   a a   v   v  a a   ");
  System.out.println("J  J  aaaaa   V V  aaaaa  ");
  System.out.println(" JJ  a     a   V  a     a ");
 }
}

9. Write a Java program to compute the specified expressions and print the output.

Test Data:
((25.5 * 3.5 - 3.5 * 3.5) / (40.5 - 4.5))

-->

public class Main {
      public static void main(String[] args) {
          System.out.println(((25.5 * 3.5 - 3.5 * 3.5) / (40.5 - 4.5)));
     }
}

10. Write a Java program to compute a specified formula.

4.0 * (1 - (1.0/3) + (1.0/5) - (1.0/7) + (1.0/9) - (1.0/11))

-->

public class Main {
      public static void main(String[] args) {
          System.out.println(4.0 * (1 - (1.0/3) + (1.0/5) - (1.0/7) + (1.0/9) - (1.0/11)));
     }
}

NOTE:

Java is an OOP(object oriented program). 
System.out.println(); is used to print a word , number or a text

                     in the screen.

  3.We can calculate mathematical operations in System.out.println();

                  by not using " ".

  

ANNOUNCEMENT:  I'll be posting more five questions and solutions tomorrow so stay tuned. If you have any suggestions tell me it'll help me improve.