Strings in Java : Part 5

String Methods

Continuing with commonly used method in the stings we are covering here charAt()  method is more detailed manner.

• String charAt()
• The charAt() method returns the character at the specified index number. The default index in which a string start is zero.

public class Main{  

public static void main(String args[]){  

String s="Learn Selenium";  

   char character=s.charAt(4);// Returns the char value at the 4th index  

      System.out.println(character);  

 }

}  

The output of the above program is n

Now what if you try to put the index value which is out of range and does not return any string value

public class Main{  

public static void main(String args[]){  

String s="Learn Selenium";  

   char character=s.charAt(15);// Returns Exception

      System.out.println(character);  

 }

}  

The output of the above program is below exception [PS: you have to be very careful while supplying the index no ]

Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: 15

at java.lang.String.charAt(String.java:658)

at Main.main(Main.java:4)