java - 使用默认布局将 JPanel 添加到 JFrame

Question

很快你就可以阅读我的代码并看到我把它作为图片输出

/*
 * Suppose I have 4 buttons vertically on the right hand side in First PAnel
 * and 4 buttons on bottom horizantally in second Panel
 * and 4 text fiedls in the center in 4 rows in third Panel
 * Using Frame's default border 
 */
       JPanel p1= new JPanel();
        for (int i = 0; i < right.length; i++) {
            right[i]=new JButton("right "+(i+1));
            p1.add(right[i]);
        }
        JPanel p2 = new JPanel();
        for (int i = 0; i < down.length; i++) {
            down[i] = new JButton("Down "+(i+1));
            p2.add(down[i]);
        }

        JPanel p3=new JPanel();
        for(int i = 0 ; i<text.length;i++){
            text[i]=new JTextField(30);
            p3.add(text[i]);
        }
        Container c =getContentPane();
        c.add(p1,"East");
        c.add(p2,"South");
        c.add(p3,"Center");
        setSize(300,400);
        setVisible(true);
        setDefaultCloseOperation(3);

输出:

我想做成这样

注意第二个输出我使用了Null布局和setBounds方法

有什么建议吗？

Answer 1

为右侧和底部的按钮创建面板 - 使用 FlowLayout为他们。为标签和文本字段创建另一个面板并使用 GridLayout或 GridBagLayout .