public class Student implements Cloneable,Serializable{//自定义类克隆实现接口 private String name; private int age; private String addr; public String getName() { return name; } public void setName(String name) { this.name = name; } public int getAge() { return age; } public void setAge...
sqlSession = sqlSessionFactory.openSession(); StudentMapper studentMapper = (StudentMapper) sqlSession.getMapper(StudentMapper.class); List students = studentMapper.selectBetweenCreatedTime(params); for (int i = 0; i < students.size(); i++) { System.out.println(students.get(i)); } } catch ...
public class Student extends Person { public void greet() { System.out.println("Hi, " + name + "!"); } } ``` 默认(package-private) 当没有明确指定访问修饰符时,默认访问修饰符将会应用。默认修饰符只能在同一包内访问。 示例代码: ```java class Person { String name; void sayHello() { S...
class shape{ public: virtual void draw( )=0; }; 下列关于shape类的描述中,正确的是 a)类shape是虚基类 b)类shape是抽象类 c)类shape中的draw函数声明有误 d)语句shape s;能够建立shape的一个对象s 免费查看参考答案及解析 题目: [单选题] 下列代码声明了3个类 class person{}; class student:publ...
PublicKeyToken=null' is not marked as serializable.(后略) 源码: [SerializeField] public class filetest : MonoBehaviour{ public FileStream a; public BinaryFormatter b; [SerializeField] public class aaabbb { public int x; public int y; } [SerializeField] aaabbb ab = new aaabbb(); [SerializeFi...
A.Student(“Mike”) B.stua C.stub D.以上都不是 点击查看答案 第2题 classCarimplementsSerializable{}classFordextendsCar{}如果试图序列化一个Ford实例,结果为() A.编译失败 B.一个对象被序列化 C.两个对象被序列化 D.运行时异常被抛出 点击查看答案 第3题 1.classPasser2{2.//insertcodehere3.st...
若有以下程序: #include <iostream> using namespace std; class A { private: int a; public: void seta(int x) { a=x; } void showa,( ) { cout<<a<<", "; } }; class B { private: int b; public: void setb(int x) { b=x; } void showb () { cout<<b<<", "; } }; cl...
public class Test{ public static void main(String ... public class Test{ public static void main(String args[]) { new Student("Tom", 'm', 90, 88); new Student("Jack", 'm', 66, 89); new Student("Mary", 'f', 76, 86); System.out.println("name\tsex\tchinese\tenglish"); ...
public static void main(String[] args) throws ClassNotFoundException { Class studentClass = Class.forName("com.java.bean.Student"); //获取类中所有public修饰的Field Field[] fields = studentClass.getFields(); System.out.println(fields.length); ...
public class Increment{ public static void main(String args[]) { int a; a = 6; System.out.print(a); System.out.print(a++); System.out.print(a); } } A. 666 B. 667 C. 677 D. 676 12、 下列值不为true的表达式有( )。