【JAVA学习路-think in java】p67：构造器

package pkg;


class Rock2{//a class
	
	Rock2(int i){// the constructor
		System.out.println("Rock"+i);
		
		
	} 
	
	
}

public class p77 {
	public static void main(String[] args){
		for (int i=0;i<10;i++)
			new Rock2(i);
	}
	
	
}

OUTPUT：

Rock0
Rock1
Rock2
Rock3
Rock4
Rock5
Rock6
Rock7
Rock8
Rock9