Skip to main content

Write a menu driven program to perform the following operations i. Calculate the volume of cylinder. (hint : Volume: π × r² × h) ii. Find the factorial of given number. iii. Check the number is Armstrong or not. iv. Exit


import java.util.*;
class Operations
{
     static void cylinder()
     {
          float r,h;
          Scanner sc=new Scanner(System.in);
          System.out.println("Enter radius of cylinder :");
          r=sc.nextFloat();
          System.out.println("Enter height of cylinder :");
          h=sc.nextFloat();
          System.out.println("Volume of cylinder ="+3.142*r*r*h);
     }
     static void fact()
     {
          int n, fact=1;
          Scanner sc=new Scanner(System.in);
          System.out.println("Enter any number :");
          n=sc.nextInt();
          for(int i=1;i<=n;i++)
          {
              fact=fact*i;
          }
          System.out.println("Factorial of "+n+" is : "+fact);
     }
     static void armstrong()
     {
          int n, sum=0, num;
          Scanner sc=new Scanner(System.in);
          System.out.println("Enter any number :");
          n=sc.nextInt();
          int no=n;
          while(n!=0)
          {
               num=n%10;
               sum=sum+(num*num*num);
               n=n/10;
          }
          if(sum==no)
          {
             System.out.println("Number " + no + " is armstrong number");
          }
          else
             System.out.println("Number " + no + " is not armstrong number");
      }
      public static void main(String a[])
      {
            int ch=0;
            Scanner sc=new Scanner(System.in);
            while (ch<=3)
            {
                  System.out.println("1. Volume of cylinder");
                  System.out.println("2. Factorial of number");
                  System.out.println("3. Check if number is armstrong or not");
                  System.out.println("4. Exit");
                 
                  System.out.println("Enter your choice :");
                  ch=sc.nextInt();
                 
                  switch(ch)
                  {
                      case 1: cylinder();
                              break;
                      case 2: fact();
                              break;
                      case 3: armstrong();
                              break;  
                  }
            }
       }
}
         
             
         

/*OUTPUT

1. Volume of cylinder
2. Factorial of number
3. Check if number is armstrong or not
4. Exit
Enter your choice :
1
Enter radius of cylinder :
3
Enter height of cylinder :
4
Volume of cylinder =113.112
1. Volume of cylinder
2. Factorial of number
3. Check if number is armstrong or not
4. Exit
Enter your choice :
2
Enter any number :
4
Factorial of 4 is : 24
1. Volume of cylinder
2. Factorial of number
3. Check if number is armstrong or not
4. Exit
Enter your choice :
3
Enter any number :
43
Number 43 is not armstrong number
1. Volume of cylinder
2. Factorial of number
3. Check if number is armstrong or not
4. Exit
Enter your choice :
4          */
         

Comments

Post a Comment

Popular posts from this blog

Write a program to read book information (bookid, bookname, bookprice, bookqty) in file “book.dat”. Write a menu driven program to perform the following operations using Random access file: i. Search for a specific book by name. ii. Display all book and total cost

  import java . io .*; import java . util .*; class Book {       String name , id ;       int qty ;       double price , total ;       Book ( String i , String n , String p , String q )      {               name = n ;               id = i ;               qty = Integer . parseInt ( q );               price = Double . parseDouble ( p );               total = qty * price ;      }       public String toString ()      {               System . out . println ( "name\t id\t qty\t price\t total" );               String s = name + "\t" + id + "\t" + qty + "\t" + price + "\t" + total ;           ...
Post a Comment
Read more

Write a Java program to design a screen using Awt that will take a user name and password. If the user name and password are not same, raise an Exception with appropriate message. User can have 3 login chances only. Use clear button to clear the TextFields.

  import java . awt .*; import java . awt . event .*; import javax . swing .*; class InvalidPasswordException extends Exception {       InvalidPasswordException ()       {             System . out . println ( "Username and password is not same" );       } } public class Password extends Frame implements ActionListener {       Label uname , upass ;       TextField nametext ;       TextField passtext , msg ;       Button login , Clear ;       Panel p ;       int attempt = 0 ;       char c = '*' ;             public void login ()       {             p = new Panel ();             uname = new Label ( "Username : " , Label . CENTER );             upass = n...
Post a Comment
Read more

Create an abstract class “order” having members id,description.Create two subclasses “Purchase Order” and “Sales Order” having members customer name and Vendor name respectively.Define methods accept and display in all cases. Create 3 objects each of Purchase Order and Sales Order and accept and display details.

  import java . io .*; abstract class Order {       String description ;       int id ; } class PurchaseOrder extends Order {       String customername , vendorname ;             public void accept () throws IOException      {             System . out . println ( "Enter description, customername and vendorname,id :" );             BufferedReader br = new BufferedReader ( new InputStreamReader ( System . in ));                         description = br . readLine ();             customername = br . readLine ();             vendorname = br . readLine ();             id = br . read ();      }             public void display () ...
Post a Comment
Read more