编写一个算术测试小软件，用来训练小学生的算术能力。软件界面如下图所示，点击“获取题目”的按钮，监视器负责给出算术题目显示在文本框和标签上。用户在第三个文本框输入答案，点击“确认答案”按钮，系统给出结果“回答正确”或者“回答错误”。java程序

以下是一个简单的算术测试小软件的Java代码实现，希望能够帮助你。

import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.JLabel;
import javax.swing.JButton;
import javax.swing.JTextField;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.util.Random;

public class ArithmeticTest extends JFrame {

    private JPanel contentPane;
    private JTextField textFieldNum1;
    private JTextField textFieldNum2;
    private JTextField textFieldOperator;
    private JTextField textFieldAnswer;
    private JLabel labelResult;
    private int num1;
    private int num2;
    private int operator;
    private int answer;

    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                try {
                    ArithmeticTest frame = new ArithmeticTest();
                    frame.setVisible(true);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }

    public ArithmeticTest() {
        setTitle("算术测试");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setBounds(100, 100, 450, 300);
        contentPane = new JPanel();
        contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
        setContentPane(contentPane);
        contentPane.setLayout(null);

        JLabel lblNewLabel = new JLabel("第一个数：");
        lblNewLabel.setBounds(54, 31, 68, 15);
        contentPane.add(lblNewLabel);

        textFieldNum1 = new JTextField();
        textFieldNum1.setEditable(false);
        textFieldNum1.setBounds(132, 28, 66, 21);
        contentPane.add(textFieldNum1);
        textFieldNum1.setColumns(10);

        JLabel lblNewLabel_1 = new JLabel("第二个数：");
        lblNewLabel_1.setBounds(54, 74, 68, 15);
        contentPane.add(lblNewLabel_1);

        textFieldNum2 = new JTextField();
        textFieldNum2.setEditable(false);
        textFieldNum2.setBounds(132, 71, 66, 21);
        contentPane.add(textFieldNum2);
        textFieldNum2.setColumns(10);

        JLabel lblNewLabel_2 = new JLabel("运算符：");
        lblNewLabel_2.setBounds(54, 119, 68, 15);
        contentPane.add(lblNewLabel_2);

        textFieldOperator = new JTextField();
        textFieldOperator.setEditable(false);
        textFieldOperator.setBounds(132, 116, 66, 21);
        contentPane.add(textFieldOperator);
        textFieldOperator.setColumns(10);

        JButton btnNewButton = new JButton("获取题目");
        btnNewButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                generateQuestion();
            }
        });
        btnNewButton.setBounds(54, 163, 93, 23);
        contentPane.add(btnNewButton);

        JLabel lblNewLabel_3 = new JLabel("你的答案：");
        lblNewLabel_3.setBounds(54, 207, 68, 15);
        contentPane.add(lblNewLabel_3);

        textFieldAnswer = new JTextField();
        textFieldAnswer.setBounds(132, 204, 66, 21);
        contentPane.add(textFieldAnswer);
        textFieldAnswer.setColumns(10);

        JButton btnNewButton_1 = new JButton("确认答案");
        btnNewButton_1.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                checkAnswer();
            }
        });
        btnNewButton_1.setBounds(222, 163, 93, 23);
        contentPane.add(btnNewButton_1);

        labelResult = new JLabel("");
        labelResult.setBounds(222, 207, 93, 15);
        contentPane.add(labelResult);
    }

    private void generateQuestion() {
        Random random = new Random();
        num1 = random.nextInt(100);
        num2 = random.nextInt(100);
        operator = random.nextInt(4);
        switch (operator) {
        case 0:
            textFieldOperator.setText("+");
            answer = num1 + num2;
            break;
        case 1:
            textFieldOperator.setText("-");
            answer = num1 - num2;
            break;
        case 2:
            textFieldOperator.setText("*");
            answer = num1 * num2;
            break;
        case 3:
            textFieldOperator.setText("/");
            answer = num1 / num2;
            break;
        }
        textFieldNum1.setText(String.valueOf(num1));
        textFieldNum2.setText(String.valueOf(num2));
        textFieldAnswer.setText("");
        labelResult.setText("");
    }

    private void checkAnswer() {
        try {
            int userAnswer = Integer.parseInt(textFieldAnswer.getText());
            if (userAnswer == answer) {
                labelResult.setText("回答正确");
            } else {
                labelResult.setText("回答错误");
            }
        } catch (NumberFormatException e) {
            labelResult.setText("请输入数字");
        }
    }

}

这个程序使用了Java Swing库来创建图形用户界面，并使用了Random类来生成随机的算术题目。generateQuestion方法用于生成新的算术题目，并在文本框和标签中显示它们。checkAnswer方法用于检查用户输入的答案是否正确，并在标签中显示结果。