This tutorial will educate you create a program that may undo a textual content utilizing a shortcut key of ctrl+z in java.
So, now let’s begin this tutorial!
1. Open JCreator or NetBeans and make a java program with a file title of undoCtrlZ.java.
2. Import the next package deal library:
3. We are going to initialize variables in our Most important, variable body as JFrame, txtArea for JTextArea, undo as UndoManager and declare it as last as a result of we are going to create an internal class on it, variable doc for the Doc class.
4. Create an internal class for the UndoableEditEvent of the doc in our textArea. It will set off that the textArea might be editable.
5. Create additionally an internal class that may have an undo occasion on the textArea. It will use the getActionMap technique.
To have a ctrl z shortcut for the undo. Have this code beneath:
Output:
This is the complete code of this tutorial:
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