Wednesday, July 29, 2020

 EXAMPLE OF MENU DRIVEN PROGRAM IN JAVA
-----------------------------------------------------------------------
//To implement Menu driven Program
import java.util.*; // Include Java Packages
public class menu   // Declare the class
{
  public static void main(String args[]) //Main method
  {
      Scanner ob=new Scanner(System.in);
      int a,b,c;                             //Declare the variables
      System.out.println("                          MAIN MENU                        ");     // Main menu
      System.out.println("\t ------------------------------------------------------------");
      System.out.println("\t 1.TO ADD 2 NUMBERS AND DISPLAY THE RESULT");
      System.out.println("\t 2.TO MULTIPLY 2 NUMBERS AND DISPLAY THE RESULT");
      System.out.println("\t 3.TO CALCULATE AVERAGE OF 2 NUMBERS AND DISPLAY THE RESULT");
      System.out.println("\t 4.EXIT");
      System.out.println("\t ENTER YOUR CHOICE");    //input your choice
      int ch=ob.nextInt();
     
     
      switch(ch)
      {
                   
          case 1:                                  //To add 2 numbers
          System.out.println("\n\n");
          System.out.println("\t Enter the numbers");
          a=ob.nextInt();
          b=ob.nextInt();
          c=a+b;
          System.out.println("\n\n");
          System.out.println("\t SUM IS:"+c);     //Display the answer
          break;
         
          case 2:
          System.out.println("\n\n");
          System.out.println("\t Enter the numbers");  //To Multiply 2 numbers
          a=ob.nextInt();
          b=ob.nextInt();
          c=a*b;
          System.out.println("\n\n");
          System.out.println("\t PRODUCT IS:"+c);     //Display the answer
          break;
         
          case 3:
          System.out.println("\n\n");
          System.out.println("\t Enter the numbers");   //To divide 2 numbers
          a=ob.nextInt();
          b=ob.nextInt();
          int k1=0;
          int k2=0;
          if(a==b)
          {
            k1=1;
            k2=0;
          }
          if(a>b)
          {
           k1=a/b;
           k2=a%b;
           }
          else
          {
           k1=b/a;
           k2=b%a;
           }
           System.out.println("\n\n");
           System.out.println("\t QUOTIENT IS:"+k1);     //Display the answers
           System.out.println("\t REMAINDER IS:"+k2);
          
           case 4:
           System.exit(1);
          
           default :
           System.out.println("\t INVALID CHOICE");    //Invalid case
        }  //End of Switch
     
    }  //End of main
}  //End of class

       
         
         
         
         

Tuesday, July 28, 2020

Algorithm :

1. Write an Algorithm to input a number and check whther the number is Odd or Even .

START

Step 1: Input the value of 'N'

Step 2: If N is divisible by 2 then Print N "is  Even Number" else Print "is Odd Number"

END


  3.WAP IN JAVA TO INPUT THREE NUMBERS AND COUNT HOW MANY OF THEM ARE EVEN .   import java.util.*; class Prog {   public static ...