class B{ public B(){ //无参构造方法 } public B(int a,int b){ //有参构造方法 } }
public class Cellphone { /*public Cellphone() { System.out.println("智能手机的默认语言为英文"); } public Cellphone(String defaultLanguage) { System.out.println("将智能手机的默认语言设置为" + defaultLanguage); } public static void main(String[] args) { Cellphone cellphone1 = new Cellphone(); Cellphone cellphone2 = new Cellphone("中文"); }*/ public static void main(String[] args) { String lan = "中文"; Cellphone cp = new Cellphone(); Cellphone cp2 = new Cellphone(lan); } public Cellphone(String lan){ System.out.println("智能手机的语言可以设置为:"+lan); } public Cellphone(){ System.out.println("智能手机的默认语言为英文"); } }