Java Tutorial : Java String (indexOf(int ch) method)

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Java Tutorial : Java String (indexOf(int ch) method) 

IndexOfDemo.java

/*
 * public int indexOf(int ch)
 *
 * Parameters:
 * ----------
 * ch - a character (Unicode code point).
 *
 * Returns:
 * --------
 * Returns the index within this string of the first
 * occurrence of the specified character. , or -1 if
 * the character does not occur.
 */

public class IndexOfDemo
{

    public static void main(String[] args)
    {
        String str = "Welcome";
        
        int indexPosition = str.indexOf('e');
        System.out.println("indexOf(\'e\') = " + indexPosition);
        
        indexPosition = str.indexOf(109); //Unicode value of m is 109
        System.out.println("indexOf(\'m\') = " + indexPosition);

        indexPosition = str.indexOf('a');
        System.out.println("indexOf(\'a\') = " + indexPosition);

    }
}

Output

indexOf('e') = 1
indexOf('m') = 5
indexOf('a') = -1

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

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

Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/a73203f981da1e65b72e10bb91ed595b4f0c377b/BasicJava/StringDemo_indexOf_int_App/?at=master

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