通过将jar文件分配给按钮来执行jar文件

Question

I have a sample FXML code with single button.

protected void doSomething() {
        System.out.println("The button was clicked!");
    }
}

dosomething() is the button Id. If I click on that button, it displays that the button was clicked. What is the proper syntax if I want to execute a jar file instead of displaying the text?

Answer 1

Lets suppose your jar is named myJar.jar then

 Process process = Runtime.getRuntime().exec(new String[]{"java","-jar","myJar.jar"});
 process.waitFor();
 java.io.InputStream inputStream = process.getInputStream();
 byte[] myByte = new byte[inputStream.available()];
 inputStream.read(myByte, 0, myByte.length);
 System.out.println(new String(myByte));