Question

java给按钮加图标 JButton jbutton_Ok=new JButton("确定"); this.add(jbutton_Ok); jbutton_Ok.setBounds

Answer 1

控件必须加到容器上，你要new 一个Jpanel才能用this.add

Answer 2

jbutton.setIcon(Icon defaultIcon)
或
jbutton = new JButton(new ImageIcon("图标图片路径"));
比如
jbutton.setIcon(new ImgeIcon("res/img/test.png"));
或者
jbutton = new JButton(new ImgeIcon("res/img/test.png"));