[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fX_DfgHVFNCT2M6hwG77V9cNzNXj5tgMRY4hI7wihXjI":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2023-05-23 19:25:39",25953466,[8,9,10,11],"包","对象","接口","方法",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},82,"705281d4ac8dd1f61ed4e9e955d5932b","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F31fffd9b1ab8ed93a1abd0aec5eb6142.jpg","面向对象程序设计","exam_94098394","第三、四章复习(1)","在Java程序中,( )是最基本的元素",[21,32,41,44,53,62,71,80,89,98],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],25953464,[25,26,27,28],"B.java","A.java","B.class","A.class","对于下面代码,正确的Java源程序文件名是( ). class A { void method1() { System.out.println("Method1 in class A"); } } public class B { void method2() { System.out.println("Method2 in class B"); } public static void main(String[] args) { System.out.println("main() inclass B"); } }","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],25953465,[36,37,38,39],"C x = new B( )","B x = new B( )","B x = new C( )","C x = new C( )","已知类B是类C的父类,则不正确的语句是( )",{"answer":42,"createTime":5,"id":6,"options":43,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":30,"type":31},[],25953467,[48,49,50,51],"构造方法不可以进行方法重载","构造方法不返回任何值","构造方法用来初始化该类新对象的成员变量","构造方法具有和类名相同的名称","关于构造方法,下列错误的说法是( )",{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":30,"type":31},[],25953468,[57,58,59,60],"3 4","6","7","8","在Java中,以下程序编译运行后的输出结果为( ). public class Test { int x, y; Test(int x, int y) { this.x = x; this.y = y; } public static void main(String[] args) { Test pt1, pt2; pt1 = new Test(3, 3); pt2 = new Test(4, 4); System.out.print(pt1.x + pt2.x); } }",{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":30,"type":31},[],25953469,[66,67,68,69],"super关键字是在子类对象内部指代其父类对象的引用","子类可以通过super关键字调用父类的属性","子类可以通过super关键字调用父类的方法","super关键字不仅可以指代子类的直接父类还可以指代父类的父类","1下列选项中关于Java中,super关键字的说法错误的是( )",{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":30,"type":31},[],25953470,[75,76,77,78],"X xo = new X( )","X xo","public X xo=new X( )","X x = new X(12)","已经定义如下类X,( )能够实例化X对象. class X{ int a; }",{"answer":81,"createTime":5,"id":82,"options":83,"question":88,"source":30,"type":31},[],25953471,[84,85,86,87],"public float aMethod(int a, Person b){ return 0;}","public int aMethod(int x,Person y,int x){ return 1;}","public float aMethod(Person y, float x){ return 0; }","private float aMethod(float a, float b, Person c){ return 0; }","定义如下Exam类,以下哪个方法插入①处是不合法的.( ) class Exam { \u002F\u002F插入一个方法 ① public int aMethod(int x, Person y) {\u002F\u002F已经定义Person类 return 1; } }",{"answer":90,"createTime":5,"id":91,"options":92,"question":97,"source":30,"type":31},[],25953472,[93,94,95,96],"public class Test extends Object{ ... }","void class Point{ ... }","final class Operators{ ... }","class Point{ ... }","关于类的定义,错误的是( )",{"answer":99,"createTime":5,"id":100,"options":101,"question":106,"source":30,"type":31},[],25953473,[102,103,104,105],"静态方法可以访问静态成员变量,不可以访问实例成员变量","静态方法可以访问静态成员变量,也可以访问实例成员变量","静态方法不可以访问静态成员变量,也不可以访问实例成员变量","实例方法可以访问静态成员变量,不可以访问实例成员变量","下面关于静态方法和实例方法的描述,正确的是( )"]