如何在Java swing中創建3個按鈕以占據添加到它們的面板的1/3？

Question

private JPanel createControlPanel() {
    JPanel ctrl = new JPanel();
    addBorder(ctrl,"Controls");
    //add 3 buttons here

    return ctrl;
    }

我想創建這3個按鈕並將其添加到ctrl

Answer 1

從文檔中：

GridLayout experimentLayout = new GridLayout(1,3);
compsToExperiment.setLayout(experimentLayout);

compsToExperiment.add(new JButton("Button 1"));
compsToExperiment.add(new JButton("Button 2"));
compsToExperiment.add(new JButton("Button 3"));

文件