Find a string length error?help

Question

import java.util.*;

// Compiler version JDK 11.0.2

class Dcoder
{
public static void main(String args[])
{ sterin str=new sachin_patel;
int l= str.length();
System.out println(l); }
}

Answer 1

May be it's mean :

String str = new String("sachin_patel");

Answer 2

sterin is probably String
if sachin_patel is the class (?) there are missed ()
and dot after System.out

import java.util.*;

class Dcoder {
public static void main(String args[]) {
//sterin str = new sachin_patel;
sterin str = new sachin_patel(); //parentheses
int l = str.length();

//System.out println(l);
System.out.println(l); //dot
}
}

//hypothetic classes
class sterin {
String str="";
int length() { return str.length(); }
}

class sachin_patel extends sterin {}