String concat() String length() String charAt() String compareTo() used.

The java string concat() method combines specified string at the end of this string

class ConcatDemo

{
public static void main(String[]args)
{

String s1="shashi";

String s2=new String("kushwaha");

System.out.println(s1.concat(s2));
}
}

Output
shashikushwaha


* It returns count of total number of characters. The length of java string is same as the unicode code units of the string.

class LengthDemo


{
public static void main(String[]args)
{

String s1="shashi";



System.out.println(s1.length());
}
}

Output
6



The java string charAt() method returns a char value at the given index number.
class CharAtDemo

{
public static void main(String[]args)
{
String s1="prince";
System.out.println(s1.charAt(4));


}
}
Output
c

* It returns positive number, negative number or 0.

class CompareToDemo
{
public static void main (String args[])
{
String s1="hello";
String s=new String("hellos");
System.out.println(s1.compareTo(s));
}
}

Output 

-1

SHARES

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About EasyToCode

I'm Ethan Mariano a software engineer by profession and reader/writter by passion.I have good understanding and knowledge of AngularJS, Database, javascript, web development, digital marketing and exploring other technologies related to Software development.