vm/src/test/java/org/apidesign/vm4brwsr/StringSample.java
author Jaroslav Tulach <jaroslav.tulach@apidesign.org>
Sat, 17 Nov 2012 16:15:10 +0100
branchjavap
changeset 171 f61602ea7759
parent 137 45184b2f9697
child 176 6f9f52ad75f5
permissions -rw-r--r--
Using === and !== to make sure empty string is not mistaken for null
     1 /**
     2  * Back 2 Browser Bytecode Translator
     3  * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
     4  *
     5  * This program is free software: you can redistribute it and/or modify
     6  * it under the terms of the GNU General Public License as published by
     7  * the Free Software Foundation, version 2 of the License.
     8  *
     9  * This program is distributed in the hope that it will be useful,
    10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    12  * GNU General Public License for more details.
    13  *
    14  * You should have received a copy of the GNU General Public License
    15  * along with this program. Look for COPYING file in the top folder.
    16  * If not, see http://opensource.org/licenses/GPL-2.0.
    17  */
    18 package org.apidesign.vm4brwsr;
    19 
    20 /**
    21  *
    22  * @author Jaroslav Tulach <jtulach@netbeans.org>
    23  */
    24 public class StringSample {
    25     public static final String HELLO = "Hello World!";
    26     private static int counter;
    27     
    28     private final int cnt;
    29     public StringSample() {
    30         cnt = ++counter;
    31     }
    32     
    33     
    34     public static char sayHello(int indx) {
    35         return HELLO.charAt(indx);
    36     }
    37     
    38     public static boolean equalToHello(int from, int to) {
    39         return "Hello".equals(HELLO.substring(from, to));
    40     }
    41     
    42     public static String fromChars(char a, char b, char c) {
    43         char[] arr = { a, b, c };
    44         return new String(arr).toString();
    45     }
    46 
    47     public static String chars(char a, char b, char c) {
    48         return ("" + a + b +c).toString();
    49     }
    50     
    51     public static String toStringTest(int howMuch) {
    52         counter = 0;
    53         StringSample ss = null;
    54         for (int i = 0; i < howMuch; i++) {
    55             ss = new StringSample();
    56         }
    57         return ss.toString().toString();
    58     }
    59     
    60     public static String concatStrings() {
    61         return (toStringTest(1) + "\\\n\r\t").toString();
    62     }
    63 
    64     @Override
    65     public String toString() {
    66         return HELLO + cnt;
    67     }
    68 }