vm/src/test/java/org/apidesign/vm4brwsr/StringSample.java
author Jaroslav Tulach <jaroslav.tulach@apidesign.org>
Thu, 24 Jan 2013 17:44:22 +0100
changeset 572 e84419744dba
parent 206 84920274cb32
child 595 784aaf9ee179
permissions -rw-r--r--
String.compareTo works OK
     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 charsFromNumbers() {
    48         return chars((char)65, (char)66, (char)67);
    49     }
    50 
    51     public static String charsFromChars() {
    52         return chars('A', 'B', 'C');
    53     }
    54 
    55     public static String chars(char a, char b, char c) {
    56         return ("" + a + b +c).toString();
    57     }
    58     
    59     public static String replace(String s, char a, char b) {
    60         return s.replace(a, b);
    61     }
    62     
    63     public static int hashCode(String h) {
    64         return h.hashCode();
    65     }
    66     
    67     public static boolean isStringInstance() {
    68         return chars('a', (char)30, 'b') instanceof String;
    69     }
    70     
    71     public static String insertBuffer() {
    72         StringBuilder sb = new StringBuilder();
    73         sb.append("Jardo!");
    74         sb.insert(0, "Ahoj ");
    75         sb.delete(4, 8);
    76         return sb.toString().toString();
    77     }
    78     
    79     public static int countAB(String txt) {
    80         int cnt = 0;
    81         for (int i = 0; i < txt.length(); i++) {
    82             switch (txt.charAt(i)) {
    83                 case 'A': cnt++; break;
    84                 case 'B': cnt += 2; break;
    85             }
    86         }
    87         return cnt;
    88     }
    89 
    90     public static int stringSwitch(String txt) {
    91         switch (txt) {
    92             case "jedna": return 1;
    93             case "dve": return 2;
    94             case "tri": return 3;
    95             case "ctyri": return 4;
    96         }
    97         return -1;
    98     }
    99     
   100     public static String toStringTest(int howMuch) {
   101         counter = 0;
   102         StringSample ss = null;
   103         for (int i = 0; i < howMuch; i++) {
   104             ss = new StringSample();
   105         }
   106         return ss.toString().toString();
   107     }
   108     
   109     public static String concatStrings() {
   110         return (toStringTest(1) + "\\\n\r\t").toString();
   111     }
   112     
   113     public static int compare(String a, String b) {
   114         return a.compareTo(b);
   115     }
   116 
   117     @Override
   118     public String toString() {
   119         return HELLO + cnt;
   120     }
   121 }