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import java.io.*;
import java.lang.*;
 
class StrCmp{
  StrCmp(){
  String str1 = "AMITABH BACHCHAN";
  String str2 = "RAJNIKANTH";
  int count = 0;
  System.out.println(str1.length);
 System.out.println(str2.length);
  }
 public int cmp(){
   for(int i = 0 ; i < str1.length ; i++)
  {
   for(int j = 0 ; j < str2.length ; j++)
   {
    if (str1[i] == str2[j])
     count++;
    else
     continue;
   }
  }
  return count;
  }
}
 
public class Main{
 public static void main(String[] args){
   StrCmp strcmp = new StrCmp();
   int outp = strcmp.cmp();
   System.out.println(outp);
 }
}

Main.java:9: cannot find symbol
symbol  : variable length
location: class java.lang.String
  System.out.println(str1.length);
                         ^
Main.java:10: cannot find symbol
symbol  : variable length
location: class java.lang.String
 System.out.println(str2.length);
                        ^
Main.java:13: cannot find symbol
symbol  : variable str1
location: class StrCmp
   for(int i = 0 ; i < str1.length ; i++)
                       ^
Main.java:15: cannot find symbol
symbol  : variable str2
location: class StrCmp
   for(int j = 0 ; j < str2.length ; j++)
                       ^
Main.java:17: cannot find symbol
symbol  : variable str1
location: class StrCmp
    if (str1[i] == str2[j])
        ^
Main.java:17: cannot find symbol
symbol  : variable str2
location: class StrCmp
    if (str1[i] == str2[j])
                   ^
Main.java:18: cannot find symbol
symbol  : variable count
location: class StrCmp
     count++;
     ^
Main.java:23: cannot find symbol
symbol  : variable count
location: class StrCmp
  return count;
         ^
8 errors

Standard output is empty