test.java

Java程序设计实验与实训源代码经典的JAVA学习教材

class Tree{
	int height=0;
	String name=new String("null");
	
	Tree(int h){
		height=h;
		System.out.println("带整形参数的构造函数");
	}
	
	Tree(String n,int h){
		this(h);
		this.name=n;
		System.out.println("带整形和字符串型参数的构造函数");
	}
	
	Tree(){
		this("香蕉树",47);
		System.out.println("默认的构造函数");
	}
		
	void showme(){
		System.out.println("产生的树名为："+name+",树高为："+height);
	}	
}

public class Test{
	public static void main(String[] args) {
		Tree mytree=new Tree();
		mytree.showme();
	}
}