四则运算测试

ound(Color.yellow);Р jtf1 = new JTextField();Р jtf1.setHorizontalAlignment(JTextField.CENTER);Р jtf1.setText((String)questions.get(0));Р jtf1.setEditable(false);Р jtf1.setBounds(new Rectangle(200,0,200,30));Р jtf2 = new JTextField();Р jtf2.setHorizontalAlignment(JTextField.CENTER);Р jtf2.setText((String)questions.get(1));Р jtf2.setEditable(false);Р jtf2.setBounds(new Rectangle(200,40,200,30));Р jtf3 = new JTextField();Р jtf3.setHorizontalAlignment(JTextField.CENTER);Р jtf3.setText((String)questions.get(2));Р jtf3.setEditable(false);Р jtf3.setBounds(new Rectangle(200,80,200,30));Р jtf4= new JTextField();Р jtf4.setHorizontalAlignment(JTextField.CENTER);Р jtf4.setText((String)questions.get(3));Р jtf4.setEditable(false);Р jtf4.setBounds(new Rectangle(200,120,200,30));Р jtf5 = new JTextField();