Username Domain Extension

Java Code:

Method I:

import java.util.*;
public class Hello {

    public static void main(String[] args) {
String s;
Scanner sc=new Scanner(System.in);
s=sc.next();
int a=0,b=0,l=s.length(),i;
for(i=0;i<l;i++)
{
    if(s.charAt(i)=='@')
    {
        a=i;
    }
    if(s.charAt(i)=='.')
    b=i;
}
for(i=b+1;i<l;i++)
System.out.print(s.charAt(i));
System.out.println();
for(i=a+1;i<b;i++)
System.out.print(s.charAt(i));
System.out.println();
for(i=0;i<a;i++)
System.out.print(s.charAt(i));
}
}

Method II:

import java.util.*;
public class Hello {

    public static void main(String[] args) {
Scanner s=new Scanner(System.in);
        String str=s.nextLine();
        String ch[]=str.split("@|\\.");
        for(int i=ch.length-1;i>=0;i--)
        System.out.println(ch[i]);
    }
}

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