Replace Continuously Repeated Characters

JAVA Code:

import java.util.*;
public class Hello {

    public static void main(String[] args) {
        //Your Code Here
Scanner s=new Scanner(System.in);
String str=s.next();
int l=str.length();
char ch='0';
for(int i=0;i<l;i++)
{
    if(ch!=str.charAt(i))
    {
        System.out.print(str.charAt(i));
        ch=str.charAt(i);
    }
}
    }
}

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