Java Basic(51)-GUI with Jframe

import java.awt.FlowLayout;

import javax.swing.JFrame; → 滙入所需要的

import javax.swing.JLabel;

public class tuna extends JFrame{

private JLabel item1;

public tuna(){

super("The title Bar"); →標題

setLayout(new FlowLayout());

item1 = new JLabel("This is a sentences"); →文字在顯示框

item1.setToolTipText("This is gonna show up on hover");

add(item1);

}

}

import javax.swing.JFrame;

class apples{

public static void main(String[] args){

tuna bucky = new tuna();

bucky.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); → 按X関閉

bucky.setSize(275,180); →此顯示框的大小

bucky.setVisible(true); →顯示此顯示框

}

}

這是運行時的結果：