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import java.util.*;
import java.lang.*;
import java.io.*;
 
 object Main {
  class MyString(val jString: String) {
    private var extraData = ""
    override def toString = jString + extraData
  }
  object MyString {
    def apply(base:String, extras:String) {
      val s = new MyString(base)
      s.extraData = extras
      s
    }
    def apply(base:String) = new  MyString(base)
  }
 
  def main(args: Array[String]) {
    println(MyString("hello", "world"))
    println(MyString("hello"))
  }
 
}

Main.java:7: error: class, interface, or enum expected
 object Main {
 ^
Main.java:8: error: '{' expected
  class MyString(val jString: String) {
                ^
Main.java:9: error: ';' expected
    private var extraData = ""
                              ^
Main.java:10: error: ';' expected
    override def toString = jString + extraData
                ^
Main.java:10: error: <identifier> expected
    override def toString = jString + extraData
                         ^
Main.java:10: error: ';' expected
    override def toString = jString + extraData
                                               ^
Main.java:12: error: class, interface, or enum expected
  object MyString {
  ^
7 errors

Standard output is empty