CharAt() in Java Example

charAt():- This is a predefined method of String class present in java.1ang package. It used to extract a specify character from a string by the particular index supplied by the programmer and the index must be within the length of the String.

Syntax:- public char charAt(int index)

Algorithm for CharAt():

step 1: read string a

step 2: initialize i=0

step 3: repeat through step-5 while (i < a.length())

step 4: print i is a.charAt(i)

step 5: i=i+ 1

step 6: exit

Here is the Java Example for CharAt():

import java.util.*; 
 public class charAt 
 { 
                static void AtChar() 
                { 
                     System.out.print("Enter a Sentence : "); 
                     Scanner s=new Scanner(System.in); 
                     String a=s.nextLine(); 
                          for (int i=0; i<a.length();i++) 
                               { 
                                     System.out.println("char " + i + " is " + a.charAt(i) ); 
                                } 
                                     System.out.println(); 
                 } 
                     public static void main(String[] args) 
                    { 
                        AtChar(); 
                    } 
 }