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

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Java Tutorial : Java StringBuilder [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)
    {

        StringBuilder sb = new StringBuilder("Welcome");

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

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

Output

charAt(3) = c
charAt(5) = m

Click the below link to download the code:
https://sites.google.com/site/javaee4321/java/StringBuilderDemo_charAt_App.zip?attredirects=0&d=1

Github Link:
https://github.com/ramram43210/Java/tree/master/BasicJava/StringBuilderDemo_charAt_App

Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/4fb20859f2e7f390cc32dd6346f52d7d27c7a813/BasicJava/StringBuilderDemo_charAt_App/?at=master

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