How do I limit the length of text entered in a JTextField?

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Index:Java 2 Standard Edition (J2SE):Java 2 JDK:Swing (javax.swing.*):Atomic Controls (JButton, JCheckBox, JRadioButton, JComboBox, JList, JMenu, JSlider, JTextField):JTextField, JPasswordField, JFormattedTextField (1.4)

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How do I limit the length of text entered in a JTextField?

Create a custom component that extends from JTextField and allow the user to specify a maximum length. The implementation is simple: capture the insertString method and execute super.insertString when the condition (current length <= maximumlength) is met.

Main.java:

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Author of answer: Joris Van den Bogaert

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