testconstructor.java

有关于java中的继承

public class TestConstructor{
	public static void main(String[] args){
		/*
		Student s=new Student("zhang3",30);
		System.out.println(s.name);
		System.out.println(s.age);
		s.study();
		*/
		/*
		int a=10;
		int b=a;
		b++;
		System.out.println(a);
		*/
		Student s1=new Student("Zhang3",30);
		Student s2=s1;
		//Student s2=new Student("Zhang3",30);
		s2.age++;
		System.out.println(s1.age);
	}
}
class Student{
	String name;
	int age;
	public Student(String n,int a){
		name=n;
		age=a;
	}	
	public void study(){
		System.out.println("Student study");
	}
}