java设计一个类ScoreCacl,类下有属性java,DB2,jsp,定义求三门课程成绩的和及平均值方法，建立测试类。

以下是ScoreCacl类和测试类的代码：

public class ScoreCalc {
    private double java;
    private double DB2;
    private double jsp;

    public ScoreCalc(double java, double DB2, double jsp) {
        this.java = java;
        this.DB2 = DB2;
        this.jsp = jsp;
    }

    public double getTotalScore() {
        return java + DB2 + jsp;
    }

    public double getAverageScore() {
        return getTotalScore() / 3;
    }
}

public class ScoreCalcTest {
    public static void main(String[] args) {
        ScoreCalc scoreCalc = new ScoreCalc(80, 85, 90);
        System.out.println("Total Score: " + scoreCalc.getTotalScore());
        System.out.println("Average Score: " + scoreCalc.getAverageScore());
    }
}

测试结果为：

Total Score: 255.0
Average Score: 85.0