方法獲得學(xué)號(hào)姓名年齡修改年齡？

public static class students {

int number;

String name;

int age;

public int getName (String number) {

this.number = number;

return number;

}

public string getName (String name){

this. name = name;

return name;

}

public int getAge(int age) {

this.age = age;

return age;

}

public void changeAge(int changeAge) {

age = changeAge;

}

}