java - 如何在 JLabel 中显示变量值

我是 Java 编程新手。我想在输出窗口而不是控制台视图中显示我的变量的值。代码如下：

import java.awt.BorderLayout;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.SwingConstants;

public class ShowAFrame {

public static void main(String[] args) {

// Variables in this code

int one = 12;

int two = 22;

int total = one + two;

System.out.println(total);

JFrame myFrame = new JFrame("Test GUI");

myFrame.setVisible(true);

myFrame.setBounds(300, 200, 700, 400);

JLabel myText = new JLabel("I'm a label in the window",

SwingConstants.CENTER);

myFrame.getContentPane().add(myText, BorderLayout.CENTER);

}

}