由于Java_2.java 文件不完整，请在注释行//*********Found********** 下一行语句的下划线地方填写入正确内容，然后删除下划线，请勿对其他内容进行改动

import javax.swing.*;
 
public class Java_2 {
    public static void main(String args[]) {
        int frequency1 = 0, frequency2 = 0,
                frequency3 = 0, frequency4 = 0,
                frequency5 = 0, frequency6 = 0, face;
        //骰子旋转500次的代码 
        for (int roll = 1; roll <= 500; roll++) {
            face = 1 + (int) (Math.random() * 6);
            //*********Found********** 
            switch (__________________) {
                case 1:
                    ++frequency1;
                    break;
                case 2:
                    ++frequency2;
                    break;
                case 3:
                    ++frequency3;
                    break;
                case 4:
                    ++frequency4;
                    break;
                case 5:
                    ++frequency5;
                    break;
                case 6:
                    ++frequency6;
                    break;
            }
        }
        //*********Found********** 
        JTextArea outputArea = _____________________ JTextArea(7, 10);
        outputArea.setText(
                "面\t频率"
                + "\n1\t" + frequency1
                + "\n2\t" + frequency2
                + "\n3\t" + frequency3
                + "\n4\t" + frequency4
                + "\n5\t" + frequency5
                + "\n6\t" + frequency6);
        //*********Found********** 
        JOptionPane.showMessageDialog(null, ___________________,
                "骰子旋转500次",
                JOptionPane.INFORMATION_MESSAGE);
        //*********Found********** 
        System.____________________(0);
    }
}