过滤AWT文本字段输入文本

Question

In jtextfield, One can restrict the inputs of an jtextfield by overriding the insertString method of document. How can i do these in awt textfield? How can i filter the inputs of an awt textfield?

Answer 1

One can restrict the inputs of an jtextfield by overriding the insertString method of document.

• not possible for AWT TextField , you can to add DocumentListener only to Swing JTextComponents

jtextfield by overriding the insertString method of document.

• maybe you need to use DocumentFilter for Swing JTextComponent s

How can i do these in awt textfield? How can i filter the inputs of an awt textfield?

• for AWT TextField you can use

  1. TextListener

  2. KeyListener

  3. listening from AWTEvent