Hello friends! welcome to my blog
Today will discuss the basic concept and simplest way to how to reverse a number in java by programming and how to make program for reverse of a number without array in java programming. How to how to count number of digit in a number in java programming, write a program to count number of digit in java
Write a program to reverse a number
import java.util.Scanner;
public class reverse{
public static void main(String[] args){
int n, r=0,d;
Scanner in =new Scanner(System.in);
System.out.println("Enter the number");
n=in.nextInt();
System.out.println("Number befour reverse= " +n);
while(n>0){
d= n%10;
r= r*10+d;
n=n/10;
}
System.out.println("Number After reverse= "+r);
}
}
public class reverse{
public static void main(String[] args){
int n, r=0,d;
Scanner in =new Scanner(System.in);
System.out.println("Enter the number");
n=in.nextInt();
System.out.println("Number befour reverse= " +n);
while(n>0){
d= n%10;
r= r*10+d;
n=n/10;
}
System.out.println("Number After reverse= "+r);
}
}
Output: Enter the Number
1234
Number befour reverse= 1234
Number After reverse= 4321
Write a program to count no of digit of a number
import java.util.Scanner;
public class count{
public static void main(String[] args){
int n, c=0,d;
Scanner in=new Scanner(System.in);
System.out.println("Enter the number");
n=in.nextInt();
while(n>0){
d= n%10;
n=n/10;
c++;
}
System.out.println("The entered number has "+ d +"digit");
}
}
public class count{
public static void main(String[] args){
int n, c=0,d;
Scanner in=new Scanner(System.in);
System.out.println("Enter the number");
n=in.nextInt();
while(n>0){
d= n%10;
n=n/10;
c++;
}
System.out.println("The entered number has "+ d +"digit");
}
}
Output: Enter the Number
1234
The entered number has 4 digit
I make this programming and hope you are like the post if are you like the post you can please comment and Share the post to reach more people.
If any doubt about this java programming code or input & output please comment below
If you have another question about java programming send an email by contacting us form are given on the page right side.
I am Try to Help in your Programming Language by Programming Shortcut
Please share your experience about this post,
Thank You!
