person.java

新东方的

//父类
class Person
{
	String name;
	int age;
	String sex;
	
	public Person()
	{
		System.out.println("构造器Person()被调用");
		sex ="Male";
		System.out.println("name="+name+" ,age="+age+" ,sex="+sex);
	}
	public Person(String theName)
	{		
		System.out.println("构造器Person(String theName)被调用");
		name = theName;
		System.out.println("name="+name+" ,age="+age+" ,sex="+sex);
	}
	public Person(String theName,int theAge)
	{		
		System.out.println("构造器Person(String theName,int theAge)被调用");
		name = theName;
		age = theAge;
		System.out.println("name="+name+" ,age="+age+" ,sex="+sex);
	}
	//初始化块
	{
		name = "Tony Blair";
		age = 50;
		sex = "Female";
		System.out.println("Person初始化块执行后：name="+name
			+" ,age="+age+" ,sex="+sex);
	}	
}