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1 /* |
1 /* |
2 * Copyright (c) 1994, 2006, Oracle and/or its affiliates. All rights reserved. |
2 * Copyright (c) 1994, 2011, Oracle and/or its affiliates. All rights reserved. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * |
4 * |
5 * This code is free software; you can redistribute it and/or modify it |
5 * This code is free software; you can redistribute it and/or modify it |
6 * under the terms of the GNU General Public License version 2 only, as |
6 * under the terms of the GNU General Public License version 2 only, as |
7 * published by the Free Software Foundation. Oracle designates this |
7 * published by the Free Software Foundation. Oracle designates this |
99 * that represents {@code false}. |
99 * that represents {@code false}. |
100 * |
100 * |
101 * @param s the string to be converted to a {@code Boolean}. |
101 * @param s the string to be converted to a {@code Boolean}. |
102 */ |
102 */ |
103 public Boolean(String s) { |
103 public Boolean(String s) { |
104 this(toBoolean(s)); |
104 this(parseBoolean(s)); |
105 } |
105 } |
106 |
106 |
107 /** |
107 /** |
108 * Parses the string argument as a boolean. The {@code boolean} |
108 * Parses the string argument as a boolean. The {@code boolean} |
109 * returned represents the value {@code true} if the string argument |
109 * returned represents the value {@code true} if the string argument |
116 * representation to be parsed |
116 * representation to be parsed |
117 * @return the boolean represented by the string argument |
117 * @return the boolean represented by the string argument |
118 * @since 1.5 |
118 * @since 1.5 |
119 */ |
119 */ |
120 public static boolean parseBoolean(String s) { |
120 public static boolean parseBoolean(String s) { |
121 return toBoolean(s); |
121 return ((s != null) && s.equalsIgnoreCase("true")); |
122 } |
122 } |
123 |
123 |
124 /** |
124 /** |
125 * Returns the value of this {@code Boolean} object as a boolean |
125 * Returns the value of this {@code Boolean} object as a boolean |
126 * primitive. |
126 * primitive. |
157 * |
157 * |
158 * @param s a string. |
158 * @param s a string. |
159 * @return the {@code Boolean} value represented by the string. |
159 * @return the {@code Boolean} value represented by the string. |
160 */ |
160 */ |
161 public static Boolean valueOf(String s) { |
161 public static Boolean valueOf(String s) { |
162 return toBoolean(s) ? TRUE : FALSE; |
162 return parseBoolean(s) ? TRUE : FALSE; |
163 } |
163 } |
164 |
164 |
165 /** |
165 /** |
166 * Returns a {@code String} object representing the specified |
166 * Returns a {@code String} object representing the specified |
167 * boolean. If the specified boolean is {@code true}, then |
167 * boolean. If the specified boolean is {@code true}, then |
227 * If there is no property with the specified name, or if the specified |
227 * If there is no property with the specified name, or if the specified |
228 * name is empty or null, then {@code false} is returned. |
228 * name is empty or null, then {@code false} is returned. |
229 * |
229 * |
230 * @param name the system property name. |
230 * @param name the system property name. |
231 * @return the {@code boolean} value of the system property. |
231 * @return the {@code boolean} value of the system property. |
|
232 * @throws SecurityException for the same reasons as |
|
233 * {@link System#getProperty(String) System.getProperty} |
232 * @see java.lang.System#getProperty(java.lang.String) |
234 * @see java.lang.System#getProperty(java.lang.String) |
233 * @see java.lang.System#getProperty(java.lang.String, java.lang.String) |
235 * @see java.lang.System#getProperty(java.lang.String, java.lang.String) |
234 */ |
236 */ |
235 public static boolean getBoolean(String name) { |
237 public static boolean getBoolean(String name) { |
236 boolean result = false; |
238 boolean result = false; |
237 try { |
239 try { |
238 result = toBoolean(System.getProperty(name)); |
240 result = parseBoolean(System.getProperty(name)); |
239 } catch (IllegalArgumentException e) { |
241 } catch (IllegalArgumentException | NullPointerException e) { |
240 } catch (NullPointerException e) { |
|
241 } |
242 } |
242 return result; |
243 return result; |
243 } |
244 } |
244 |
245 |
245 /** |
246 /** |
273 * @since 1.7 |
274 * @since 1.7 |
274 */ |
275 */ |
275 public static int compare(boolean x, boolean y) { |
276 public static int compare(boolean x, boolean y) { |
276 return (x == y) ? 0 : (x ? 1 : -1); |
277 return (x == y) ? 0 : (x ? 1 : -1); |
277 } |
278 } |
278 |
|
279 private static boolean toBoolean(String name) { |
|
280 return ((name != null) && name.equalsIgnoreCase("true")); |
|
281 } |
|
282 } |
279 } |