[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fBPtv_JH7tM0lzm1C1DQpUUIBwSjnXcS1V4_3UU9u8xw":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2024-09-26 15:23:10",160269565,[8,9,10,11],"接口中可以包含普通方法","抽象类中只能包含抽象方法,不能包含普通方法","接口中只能定义静态常量属性,不能定义普通属性","接口中可以包含构造器",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},9,"0c8e562994f68e040b3dfc12ca0fb260","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F6e8b19871218401959fe31a297766b01.jpg","基于框架的WEB开发技术","work_37112856","第一章作业","下面关于抽象类和接口论述正确的是( )",[21,32,41,50,59,68,71,80,89],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],160269560,[25,26,27,28],"public和protected","public和private","private和protected","以上都不对","子类能够继承父类中被声明为的成员变量和成员方法( )","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],160269561,[36,37,38,39],"abstract void Func(){}","virtual void Func(){}","abstract void Func()","override void Func()","下列方法中,哪个是抽象方法( )",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],160269562,[45,46,47,48],"public class Sample {class static Apple {}}","public class Zoo{……class Wolf{ }}","public void sell() {public class Apple {}}","public void class Water{public void setGo(){}}","下面关于内部类的格式,正确的是( )",{"answer":51,"createTime":5,"id":52,"options":53,"question":58,"source":30,"type":31},[],160269563,[54,55,56,57],"final不可以修饰成员变量","final只能修饰局部变量","final可以修饰成员变量也可以修饰局部变量","final修饰基本类型的变量时可以对变量重新赋值","下面关于final变量的描述正确的是( )",{"answer":60,"createTime":5,"id":61,"options":62,"question":67,"source":30,"type":31},[],160269564,[63,64,65,66],"接口只能实现不能被继承","接口可以实现多继承","接口和类都可以实现多继承","当子类继承父类接口时,子类获得父类方法是有限的","关于类和接口的继承,以下说法正确的是( )",{"answer":69,"createTime":5,"id":6,"options":70,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":30,"type":31},[],160269566,[75,76,77,78],"大家好","大家好,祝工作顺利","大家好大家好,祝工作顺利","大家好,大家好,祝工作顺利","请说出下列程序的输出结果( ).class Cry {public void cry() {System.out.println("大家好");}}public class E {public static void main(String args[]) {Cry hello=new Cry() {public void cry() {System.out.println("大家好,祝工作顺利!");}};hello.cry();}}",{"answer":81,"createTime":5,"id":82,"options":83,"question":88,"source":30,"type":31},[],160269567,[84,85,86,87],"120 【代码2】-100 【代码3】-100","120 【代码2】120 【代码3】-100","120 【代码2】120 【代码3】20","120 【代码2】20 【代码3】-100","请说出E类中【代码1】~【代码3】的输出结果. class A { int m; int getM() { return m; } int seeM() { return m; } } class B extends A { int m ; int getM() { return m+100; } } public class E { public static void main(String args[]) { B b = new B(); b.m = 20; System.out.println(b.getM()); \u002F\u002F【代码1】 A a = b; a.m = -100; System.out.println(a.getM()); \u002F\u002F【代码2】 System.out.println(b.seeM()); \u002F\u002F【代码3】 } }",{"answer":90,"createTime":5,"id":91,"options":92,"question":97,"source":30,"type":31},[],160269568,[93,94,95,96],"sum=-100","sum=100","sum=200","sum=-300","请说出A类中System.out.println的输出结果. class B { int x = 100,y = 200; public void setX(int x) { x = x; } public void setY(int y) { this.y = y; } public int getXYSum() { return x+y; } } public class A { public static void main(String args[]) { B b = new B(); b.setX(-100); b.setY(-200); System.out.println("sum="+b.getXYSum()); } }"]