ANGEL NUMBER IN JAVA LANGUAGE
AMRUHA AHMED
5th October,2022.
An angel number is a number in which there is an uncanny repitition of digits, giving a feeling
of a divine message for some people.
The following Java program checks whether the given number is an angel number or not:
METHOD-1:
import java.util.*;
public class angelnumber
{
public static void main(String args[])
{
Scanner ob=new Scanner(System.in);
int n;//accepted number
int d;//dummy variable
int flag=0;//flag variable for checking equality of digits
char c1;//gives current character
char c2;//gives succeeding character
int i=0;//loop counter
System.out.print("Enter a number:");
n=ob.nextInt();
String s=n+"";
int l=s.length();
while(i<l-1)
{
c1=s.charAt(i);
c2=s.charAt(i+1);
if(c1!=c2)
{
flag=1;
break;
}
i++;
}
if(flag==1)
System.out.println(n+" is not an Angel Number");
else
System.out.println(n+" is an Angel Number");
}
}
DRY RUN:
Supposing n is given as 777. Then string s will look as follows:
Then the process occuring in the while loop looks as follows:
After this the while loop ceases.Since flag is still 0, 777 is said to be an angel number.
OUTPUT:
Enter a number:777
777 is an Angel Number
OUTPUT:
Enter a number:232
232 is not an Angel Number
METHOD-2:
import java.util.*;
public class angelnumber
{
public static void main(String args[])
{
Scanner ob=new Scanner(System.in);
int n;//accepted number
int[] a = new int[20];//array to store digits of the number
int i=0;//counter to store digit in the array
int j;//loop counter for checking
int d;//dummy variable
int flag=0;//flag to check if the consecutive digits of the array are equal to each other or not
System.out.print("Enter a number:");
n=ob.nextInt();
d=n;
while(n!=0)
{
a[i++]=n%10;
n=n/10;
}
for(j=0;j<i-1;j++)
{
if(a[j]==a[j+1])
continue;
else
{
flag=1;
break;
}
}
if(flag==1)
System.out.println(d+" is not an Angel Number");
else
System.out.println(d+" is an Angel Number");
}
}
DRY RUN:
Supposing the input n is provided as 232.After the while loop,variable i will have the value 3 and the contents of array a[] are as follows:
The process taking place in the for loop is as follows:
After this, the for loop ceases.Since flag is 1, 232 is not an angel number.
OUTPUT:
Enter a number:777
777 is an Angel Number
OUTPUT:
Enter a number:232
232 is not an Angel Number