阅前声明: http://blog.csdn.net/heimaoxiaozi/archive/2007/01/19/1487884.aspx
/****************** Exercise 2 ******************* Add an overloaded constructor to Exercise 1* that takes a String argument and prints it* along with your message.***********************************************/public class E02_OverloadedConstructor { E02_OverloadedConstructor() { System.out.println("Default constructor"); } E02_OverloadedConstructor(String s) { System.out.println("String arg constructor"); System.out.println(s); } public static void main(String args[]) { // Call default version: new E02_OverloadedConstructor(); // Call overloaded version: new E02_OverloadedConstructor("Overloaded"); }}
//+M java E02_OverloadedConstructor
** A second way to do this is to explicitly call the default constructor inside the overloaded constructor using this:
public class E02_OverloadedConstructor2 { E02_OverloadedConstructor2() { System.out.println("Default constructor"); } E02_OverloadedConstructor2(String s) { this(); System.out.println(s); } public static void main(String args[]) { // Call default version: new E02_OverloadedConstructor2(); // Call overloaded version: new E02_OverloadedConstructor2("Overloaded"); }}
//+M java E02_OverloadedConstructor2
