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Delete the first 10 characters from JTextArea in Java
Let’s say the following is our JTextArea with default text −
JTextArea textArea = new JTextArea("The text added here is just for demo. "
+ "
This demonstrates the usage of JTextArea in Java. In this example we have"
+ "deleted some text.");Now to remove the first 10 characters, use replaceRange() method and set null from one end to another i.e. deleting characters in a range. The replaceRaneg() method Replaces text from the indicated start to end position with the new text specified i.e.e here null will replace the first 10 characters −
int start = 0; int end = 10; textArea.replaceRange(null, start, end);
The following is an example to delete the first 10 characters from JTextArea −
Example
package my;
import java.awt.GridLayout;
import javax.swing.*;
public class SwingDemo {
SwingDemo() {
JFrame frame = new JFrame("Demo");
JTextArea textArea = new JTextArea("The text added here is just for demo. " + "
This demonstrates the usage of JTextArea in Java. In this example we have" + "deleted some text.");
int start = 0;
int end = 10;
textArea.replaceRange(null, start, end);
frame.add(textArea);
frame.setSize(550,300);
frame.setLayout(new GridLayout(2, 2));
frame.setVisible(true);
}
public static void main(String args[]) {
new SwingDemo ();
}
}The output is as follows. We have deleted first 10 characters here −
Output
Updated on: 30-Jul-2019
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