testid.java

来自「有关于java的小练习」· Java 代码 · 共 18 行

public class TestID{
	public static void main(String[] args){
		Account c1=new Account();
		System.out.println(c1.id);
		Account c2=new Account();
		System.out.println(c2.id);
		
		System.out.println(c1.id);
	}
}
class Account{
	long id;
	static long sid=100000L;
	public Account(){
		sid++;
		id=sid;
	}
}