flower.java

来自「java简单应用」· Java 代码 · 共 37 行

//: Flower.java
// Calling constructors with "this"
public class Flower {
	private int petalCount = 0;
	private String s = new String("null");
	Flower(int petals) {
		petalCount = petals;
		System.out.println(
			"Constructor w/ int arg only, petalCount= "
			+ petalCount);
	}
	Flower(String ss) {
		System.out.println(
			"Constructor w/ String arg only, s=" + ss);
		s = ss;
	}
	Flower(String s, int petals) {
		this(petals);
		//! this(s); // Can't call two!
		this.s = s; // Another use of "this"
		System.out.println("String & int args");
	}
	Flower() {
		this("hi", 47);
		System.out.println(
		"default constructor (no args)");
	}
	void print() {
		//! this(11); // Not inside non-constructor!
		System.out.println(
		"petalCount = " + petalCount + " s = "+ s);
	}
	public static void main(String[] args) {
		Flower x = new Flower();
		x.print();
	}
} ///:~