WAP in Java To Check Whether a number is Duck No.or not.

A Duck number is a number which has zeroes present in it,
 but there should be no zero present in the beginning of the number.
For example 3210, 7056, 8430709 are all duck numbers whereas 08237,
04309 are not.

class duck
{
public static void main(String args[])
{
    int n=50603;
 int rem=0,p,x=0;
while(n>0)
{
rem=n%10;
if(rem==0)
{
x++;
}
else
{
p=rem;
}
n=n/10;
}
if(x>0)
System.out.println("duck number ");
else
System.out.println("not duck number ");
}
}

Comments

Post a Comment

Popular posts from this blog

A school has following rules for grading system: a. Below 25 - F b. 25 to 45 - E c. 45 to 50 - D d. 50 to 60 - C e. 60 to 80 - B f. Above 80 - A Ask user to enter marks and print the corresponding grade.

A school has following rules for grading system: a. Below 25 - F b. 25 to 45 - E c. 45 to 50 - D d. 50 to 60 - C e. 60 to 80 - B f. Above 80 - A Ask user to enter marks and print the corresponding grade. import java.util.Scanner ; class Ans { public static void main ( String [] args ){ Scanner s = new Scanner ( System . in ); System . out . println ( "Enter your marks" ); int x = s . nextInt (); if ( x < 25 ){ System . out . println ( "F" ); } else if (( x >= 25 )&&( x < 45 )){ System . out . println ( "E" ); } else if (( x >= 45 )&&( x < 50 )){ System . out . println ( "D" ); } else if (( x >= 50 )&&( x < 60 )){ System . out . println ( "C" ); } else if (( x >= 60 )&&( x < 80 )){ System . out . println ( "B" ); } else if (( x >= 80
Read more

Write Java program to allow the user to input his/her age. Then the program will show if the person is eligible to vote. A person who is eligible to vote must be older than or equal to 18 years old.

import java.util.*;  class Vote { public static void main(String args[]) { int age; Scanner sc=new Scanner(System.in); System.out.print("What is your age?"); age=sc.nextInt(); if(age>=18) System.out.println("You are eligible to vote."); else System.out.println("You are not eligible to vote."); } } Output:What is your age? 18 You are eligible to vote.
Read more

A Computer Salesman gets commission on the following basis using Java

/*A computer salesman gets commission on the following basis:             Sales                        Commission Rate             Rs. 0 - 20,000                      3%             Rs. 20,000 - 50,000                12%             Rs. 50,001 and more                31% After accepting the sales as input, calculate and print his commission amount and rate of commission.*/ Source code: import java.util.*; class Comm {     public static void main(String args[])     {         double comm=0.0;         int rate=0,sale;         Scanner sc=new Scanner(System.in);         System.out.println("Enter the sales rs:");         sale=sc.nextInt();         if(sale<=20000)         {             rate=3;             comm=sale*0.3;         }         if(sale>=20000 && sale<=50000)         {             rate=12;             comm=sale*0.12;         }         if(sale>=50000)         {             rate=31;             comm=sale*0.31;         }  
Read more