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How to execute other applications from Java?

The following program allows you to run / execute other application from Java using the Runtime.exec(...) method.

package com.javacoderanch.sample.java.lang;

import java.io.IOException;

public class RuntimeExec
{
    public static void main(String[] args)
    {
        String command = "explorer.exe";

        try
        {
            Process process = Runtime.getRuntime().exec(command);
        } catch (IOException e)
        {
            e.printStackTrace();
        }
    }
}