class AStudent {
private String name;
public int age;
public void setName(String inName) {
name = inName;
}
public String getName() {
return name;
}
}
public class TestStudent2 {
public static void main(String s[]) {
AStudent stud1 = new AStudent();
AStudent stud2 = new AStudent();
stud1.setName("Chan Tai Man");
stud1.age = 19;
stud2.setName("Ng Hing");
stud2.age = -23;
System.out.println("Student: name="+stud1.getName()+
", age=" + stud1.age);
System.out.println("Student: name="+stud2.getName()+
", age=" + stud2.age);
}
}
我如何可以通過添加數據封裝到age
屬性提升類AStudent
。如果輸入的age
無效,我想打印一條錯誤消息並將年齡設置爲18.Java對象集屬性默認
'Java的! = javascript' –