The Java Developers Almanac 1.4

e77. Converting a String to Upper or Lower Case

    // Convert to upper case
    String upper = string.toUpperCase();
    
    // Convert to lower case
    String lower = string.toLowerCase();

Related Examples

e70. Constructing a String
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
e78. Converting a Primitive Type Value to a String
e79. Converting Between Unicode and UTF-8
e80. Determining a Character's Unicode Block
e81. Determining If a String Is a Legal Java Identifier

See also: Arrays    Assertions    Classes    Commands    Numbers    Objects    System Properties    Threads

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