overloadedconstructors.java

java编程思想第四版习题答案

 
 // initialization/OverloadedConstructors.java
// TIJ4 Chapter Initialization, Exercise 9, page 172
// Create a class with two (overloaded) constructors. Using 'this', call
// the second constructor from inside the first one.

class Doc {
	Doc(int i) {
		this("MD");
		int yearsTraining = i;
		System.out.println("New doc with " + i + " years of training");
	}
	Doc(String s) {
		String degree = s;
		System.out.println("New doc with " + s + " degree");
	}
	void intubate() {
		System.out.println("prepare patient");
		laryngoscopy();
	}
	void laryngoscopy() {
		System.out.println("use laryngoscope");
	}
}

public class OverloadedConstructors {
	public static void main(String[] args) {
		new Doc(8).intubate();
	}
}