How do I open a file using the default registered application?

If you want to open a file using the default registered or associated application for those files you can use the file) method call. In the example below we’ll ask the Desktop class to open a text file.

package org.kodejava.example.awt;

import java.awt.*;

public class RunningDefaultAppOpen {
    public static void main(String[] args) {
        // A reference to a text file
        File file = new File("data.txt");

        try {
            Desktop desktop = Desktop.getDesktop();

            // Open a file using the default program for the
            // file type. In the example we will launch a
            // default registered program to open a text file.
            // For example on Windows operating system this call
            // might launch a notepad.exe to open the file.
        } catch (IOException e) {

Wayan Saryada

Programmer, runner, recreational diver, currently living in the island of Bali, Indonesia. Mostly programming in Java, creating web based application with Spring Framework, Hibernate / JPA.


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