Java Tutorial : Java String [replaceFirst(String regex, String replacement) method]

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Java Tutorial : Java String [replaceFirst(String regex, String replacement) method] 

ReplaceFirstDemo.java

/*
 * public String replaceFirst(String regex, String
 *                                         replacement)
 * 
 * Parameters: 
 * ---------- 
 * regex - the regular expression to which this
 * string is to be matched. 
 * 
 * replacement - the string to be substituted 
 * for the first match.
 * 
 * Returns: 
 * ------- 
 * Replaces the first substring of this string that
 * matches the given regular expression with the
 * given replacement.
 * 
 * Throws: 
 * ------ 
 * PatternSyntaxException - if the regular
 * expression's syntax is invalid.
 */

public class ReplaceFirstDemo
{

    public static void main(String[] args)
    {
        String str = "My name is Peter,her name is Juli";
        System.out.println("str         =  " + str);

        String replacedStr = str.replaceFirst("is", "was");
        System.out.println("replacedStr =  " + replacedStr);

    }
}

Output

str         =  My name is Peter,her name is Juli
replacedStr =  My name was Peter,her name is Juli

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

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

Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/627e98cff1455d9113a0f59150e05649fae86225/BasicJava/StringDemo_ReplaceFirst_App/?at=master

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