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The Java Developers Almanac 1.4Order this book from Amazon. |
e78. Converting a Primitive Type Value to a StringThere are two ways to convert a primitive type value into a string. The explicit way is to callString.valueOf() . The implicit way is
to use the string concatenation operator `+ '.
// Use String.valueOf() String s = String.valueOf(true); // true s = String.valueOf((byte)0x12); // 18 s = String.valueOf((byte)0xFF); // -1 s = String.valueOf('a'); // a s = String.valueOf((short)123); // 123 s = String.valueOf(123); // 123 s = String.valueOf(123L); // 123 s = String.valueOf(1.23F); // 1.23 s = String.valueOf(1.23D); // 1.23 // Use + s = ""+true; // true s = ""+((byte)0x12); // 18 s = ""+((byte)0xFF); // -1 s = ""+'a'; // a s = ""+((short)123); // 123 s = ""+123; // 123 s = ""+123L; // 123 s = ""+1.23F; // 1.23 s = ""+1.23D; // 1.23
e71. Comparing Strings e72. Determining If a String Contains a Substring e73. Getting a Substring from a String e74. Searching a String for a Character or a Substring e75. Replacing Characters in a String e76. Replacing Substrings in a String e77. Converting a String to Upper or Lower Case e79. Converting Between Unicode and UTF-8 e80. Determining a Character's Unicode Block e81. Determining If a String Is a Legal Java Identifier
© 2002 Addison-Wesley. |