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Java Tutorial : Java StringBuffer [charAt(int index) method]

CharAtDemo.java

/*
 * public char charAt(int index)
 * 
 * Parameters:
 * ----------                           
 * index - the index of the desired char value.
 * 
 * Returns:
 * -------- 
 * the char value at the specified index.
 * 
 * Throws:
 * ------
 * IndexOutOfBoundsException - if index is negative 
 * or greater than or equal to length(). 
 */

public class CharAtDemo
{

    public static void main(String[] args)
    {

        StringBuffer sb = new StringBuffer("Welcome");

        char ch = sb.charAt(3);
        System.out.println("charAt(3) = " + ch);

        ch = sb.charAt(5);
        System.out.println("charAt(5) = " + ch);
    }
}