Java String Starts Wtih startsWithConcatenationOf(String testee, String firstPrefix, String secondPrefix)

Here you can find the source of startsWithConcatenationOf(String testee, String firstPrefix, String secondPrefix)

Description

Equivalent to testee.startsWith(firstPrefix + secondPrefix) but avoids creating an object for concatenation.

License

Open Source License

Parameter

Parameter	Description
testee	a parameter
firstPrefix	a parameter
secondPrefix	a parameter

Declaration

public static boolean startsWithConcatenationOf(String testee, String firstPrefix, String secondPrefix)

Method Source Code

//package com.java2s;
//License from project: Open Source License 

public class Main {
    /**//  w  w  w.  j a  v  a 2 s. c  o m
     * Equivalent to testee.startsWith(firstPrefix + secondPrefix) but avoids
     * creating an object for concatenation.
     * 
     * @param testee
     * @param firstPrefix
     * @param secondPrefix
     * @return
     */
    public static boolean startsWithConcatenationOf(String testee, String firstPrefix, String secondPrefix) {
        int l1 = firstPrefix.length();
        int l2 = secondPrefix.length();
        if (testee.length() < l1 + l2)
            return false;
        return testee.startsWith(firstPrefix) && testee.regionMatches(l1, secondPrefix, 0, l2);
    }
}