Modifying Text in a JTextComponent: Replace the first 3 characters with some text : JTextComponent « Swing JFC « Java

1. Java
2. Swing JFC
3. JTextComponent

Modifying Text in a JTextComponent: Replace the first 3 characters with some text

  


import javax.swing.JTextField;
import javax.swing.text.Document;
import javax.swing.text.JTextComponent;

public class Main {
  public static void main(String[] argv) throws Exception {
    JTextComponent textComp = new JTextField("Initial Text");
    Document doc = textComp.getDocument();

    // Replace the first 3 characters with some text
    int pos = 0;
    int len = 3;
    doc.remove(pos, len);
    doc.insertString(pos, "new text", null);
  }
}

   
    
  

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