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The Java Developers Almanac 1.4 |
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e983. Modifying Text in a JTextArea ComponentThe text in a text area can be modified using the method described in e970 Modifying Text in a JTextComponent. However, the text area supports a similar set of convenience editing methods that are demonstrated in this example. // Create the text area
JTextArea ta = new JTextArea("Initial Text");
// Insert some text at the beginning
int pos = 0;
ta.insert("some text", pos);
// Insert some text after the 5th character
pos = 5;
ta.insert("some text", pos);
// Append some text
ta.append("some text");
// Replace the first 3 characters with some text
int start = 0;
int end = 3;
ta.replaceRange("new text", start, end);
// Delete the first 5 characters
start = 0;
end = 5;
ta.replaceRange(null, start, end);
e984. Enumerating the Lines in a JTextArea Component e985. Setting the Tab Size of a JTextArea Component e986. Moving the Focus with the TAB Key in a JTextArea Component e987. Enabling Word-Wrapping and Line-Wrapping in a JTextArea Component e988. Implementing a Console Window with a JTextArea Component
© 2002 Addison-Wesley. |