小弟是菜鸟,初学,请大虾们指教,谢谢! jdk 1.5public class Person{
String name = "123";
int age = 0;
public void Person(String myName){
name = myName;
}
public void Person(String myName,int myAge){
name = myName;
age = myAge;
}
public void Person(){
this.name = "Cai";
this.age = 20;
}
public void printPerson(){
System.out.println("Name: " + name + "; Age: " + (char)age + ".");
}
public static void main(String[] args){
String myName = "";
int myAge = 0;
Person a = new Person("a",30); //编译不过,为什么?
a.printPerson();
Person b = new Person("b"); //编译不过,为什么?
b.printPerson();
Person c = new Person();
c.printPerson(); //将上两句编译不过的地方注掉以后,该句输出为 Name:123; Age: .根本就没有调用public void Person(),是为什么呢?
}
}
String name = "123";
int age = 0;
public void Person(String myName){
name = myName;
}
public void Person(String myName,int myAge){
name = myName;
age = myAge;
}
public void Person(){
this.name = "Cai";
this.age = 20;
}
public void printPerson(){
System.out.println("Name: " + name + "; Age: " + (char)age + ".");
}
public static void main(String[] args){
String myName = "";
int myAge = 0;
Person a = new Person("a",30); //编译不过,为什么?
a.printPerson();
Person b = new Person("b"); //编译不过,为什么?
b.printPerson();
Person c = new Person();
c.printPerson(); //将上两句编译不过的地方注掉以后,该句输出为 Name:123; Age: .根本就没有调用public void Person(),是为什么呢?
}
}
定义构造函数的: public void Hello(){};编译时也没有出错阿,为什么呢?
你这个 public void Hello(){} 带返回类型就是一个单独的方法了,与构造器无关,当然可以编译通过的
问sun吧