构造函数与构造代码块

class Student
{
	private String course;
	private String name;
	private double grade;
	public void setCourse(String course)
	{
		this.course=course;
	}
	public String getCourse()
	{
		return course;
	}
	public void setName(String name)
	{
		this.name=name;
	}
	public String getName()
	{
		return name;
	}
	public void setGrade(double grade)
	{
		this.grade=grade;
	}
	public double getGrade()
	{
		return grade;
	}
	{
		System.out.println("This class has past the examination!");
	}
	Student(String name,double grade,String course)
	{
		setName(name);
		setGrade(grade);
		setCourse(course);
		System.out.println(this.name+" got "+this.grade+" in "+this.course);
	}
}
class StudentDemo
{
	public static void main(String[] args) 
	{
		Student s = new Student("Tom",77.5,"math");
	}
}


class Student
{
	private String course;
	private