length of a string name

class string1
{
public static void main(String args[])
{
String s=new String("ramesh kumar");
String s1="ramesh";
String s5="ramesh";
String s2=new String("RAMESH");
String s3=new String("ramesh");
String s4=new String("ramesh");

System.out.println(s);
System.out.println(s.length());
System.out.println(s.charAt(0));
System.out.println(s.charAt(1));
System.out.println(s.toUpperCase());
System.out.println(s.toLowerCase());
System.out.println(s.startsWith("r"));
System.out.println(s.endsWith("r"));
System.out.println(s1.equals(s2));
System.out.println(s1.equalsIgnoreCase(s2));
System.out.println(s1);
System.out.println(s1.length());
System.out.println(s1.substring(2));
System.out.println(s1+" "+s1);


if(s1==s5)
{
System.out.println("true");
}
else
{
System.out.println("false");

}
}
}