详解Java使用super和this来重载构造方法

//父类 class anotherPerson{   String name = "";   String age = "";   public String getAge() {     return age;   }   public void setAge(String age) {     this.age = age;   }   public void setName(String name){     this.name = name;   }   public String getName(){     return name;   }   //第一个构造方法   public anotherPerson (String name){     this.name = name;   }   //第二个构造方法   public anotherPerson(String name, String age){     this(name);//是用同一类中的其他构造方法     this.age = age;   }      public void ShowInfomation(){     System.out.println("name is "+ name +"and age is "+age);   } } //子类 class Teacher extends anotherPerson{   String school = "";   public void setSchool(String school){     this.school = school;   }   public String getSchool(){     return school;   }   public Teacher(String name){     super(name);   }   //第一个构造方法   public Teacher(String age,String school){     super("babyDuncan",age);//使用父类的构造方法     this.school = school;   }   public Teacher(String name,String age,String school){     this(age,school);//使用同一类的构造方法，而这一构造方法使用父类的构造方法     this.name = name;   }   //重写了父类的函数   public void ShowInfomation(){     System.out.println("name is "+ name +" and age is "+age+" and school is "+school);   } } public class testTeacher {       public static void main(String[] args) {     // TODO Auto-generated method stub     anotherPerson person1 = new anotherPerson("babyDuncan");     anotherPerson person2 = new anotherPerson("babyDuncan","20");     Teacher teacher1 = new Teacher("babyDuncan");     Teacher teacher2 = new Teacher("20","JLU");     Teacher teacher3 = new Teacher("babyDuncan","20","JLU");     person1.ShowInfomation();     person2.ShowInfomation();     teacher1.ShowInfomation();     teacher2.ShowInfomation();     teacher3.ShowInfomation();   }  }