'.class' expected

Question

import java.lang.String;
class StringDemo
public static void main(String args[])
  //create 3 strings
  String s1="This is Dog";
  String s2= new String(" I LIke It");
    char arr[]={"l","a","k","s","h","m","i"};
    String s3= new String(arr[]);
   //display the strings
  System.out.println("s1="+s1);
   System.out.println("s1="+s2);
   System.out.println("s1="+s3);
   //find no'of characters in s1
   System.out.println(" Length ofs1="+s1.length());
  //join s1 with s2
   System.out.println("s1 joined with s2="+s1.concat(s2));
  //join 3 strings using +
   System.out.println(s1+"at="+s3);
  //test s1 starts with this or not
  boolean x=s1.startsWith("This");
  if(x==true)
  System.out.println("starts with thiss1=");
  else
   System.out.println(" notstart ");
//extract substrings from s2 and s3
String p=s2.substring(0,5);
  String  q=s3.substring((0));
   System.out.println(p+q);
//convert the case of s1
s1.toUpperCase();
  System.out.println("Lower of s1="+s1);
s1. toLowerCase();
Hi, when i compile this program it gives an error like
StringDemo.java:10: '.class' expected
    String s3= new String(arr[]);
                               ^
StringDemo.java:10: ')' expected
    String s3= new String(arr[]);what's my mistake pls helpme
ThanQu in advance

Answer 1

import java.lang.String;
class StringDemo
public static void main(String args[])
//create 3 strings
String s1="This is Dog";
String s2= new String(" I LIke It");
char arr[]={"l","a","k","s","h","m","i"};
String s3= new String(arr[]);This should be:
String s3 = new String(arr);
if(x==true)Although the above will work, you should not do this as a matter of style (it is redundant). Should be:
if (x) {
}