如何设置JButton ArrayList的属性?

时间:2019-04-26 23:07:58

标签: java swing applet jbutton

我有一个JButton ArrayList。下面的代码不起作用。如何从数组列表中访问特定按钮并设置大小,位置和其他属性,并将其添加到小程序中?

ArrayList<String> cdTitles = new ArrayList<String>();
ArrayList<JButton> btnCDS = new ArrayList<JButton>();
public void actionPerformed(ActionEvent e) {
        if(e.getActionCommand().equals("Initialize")) {
            cdTitles.add("Original Order");
            cdTitles.add("Metric - Fantasies");
            cdTitles.add("Beatles - Abby Road");
            cdTitles.add("Pearl Jam - Ten");
            cdTitles.add("Doors - Alive");
            cdTitles.add("The Rolling Stones - Gimme Shelter");

            for(int i = 0; i < cdTitles.size(); i++) {
                String buttonName = "btn" + i;
                System.out.println(buttonName);
                btnCDS.add(new JButton(buttonName));
                break;
            }
            btnCDS.get(0).setText(cdTitles.get(0));
            btnCDS.get(0).setLocation(100, 145);
            btnCDS.get(0).setSize(520, 25);
            add(btnCDS.get(0));
        }
    }

1 个答案:

答案 0 :(得分:0)

假设这是在Applet子类中执行的, 这对我有用:

@Override
public void init()
{
    // all your code between:
    // cdTitles.add("Original Order");
    // AND
    // add(btnCDS.get(0));

    // Watch out for dead code in the for loop.
}