{ IamAbstract ia=new IamAbstract(); } abstract class IamAbstract { IamAbstract(){} } 。() 此题为判断题(对,错)。
{ IamAbstract ia=new IamAbstract(); } abstract class IamAbstract { IamAbstract(){} } 。()
此题为判断题(对,错)。
相关考题:
下列程序片段中,能通过编译的是A.public abstract class Animal{ public void speak();}B.public abstract class Animal{ public void speak(){}}C.public class Animal{ public abstract void speak();}D.public abstract class Animal{ public abstract void speak(){}}
下列哪个类声明是正确的? ( )A.abstract final class H1 {...}B.abstract private move(){...}C.protected private numberD.public abstract class Car{...}
下列哪个类声明是正确的?A.abstract class G2 extends superClassl,superClass2{……}B.abstract public class classmates{……}C.public final class NewClass extends superClass implements Interfacel{……}D.public abstract class String{……}
如果有-个类MyFrame是Frame的子类,但它不能被实例化,请写出该类的声明头为( )。A.abstract class Frame. extends MyFrameB.abstract class MyFrame. extends FrameC.class MyFrame. abstract extends FrameD.class Frame. abstract extends MyFrame.
下列程序段中,正确的是______。 ①class MvClass { int var = 100; static int getVar() { return var; } } ②public class MyClass { final int date; void MyClass (int d) { date = d; } } ③public class MyMain { public static void main(String args[]) { System.out.println(Myclass1.date); } } class MyClass1 { int data = 10; } ④class IamAbstract { final int f; double d; abstrct void method(); }A.②④B.①③C.②D.以上都不对
下列对类的声明,正确的是( ) BA.abstract final class Hh{…}B.abstract private move(){…}C.protected private number;D.public abstract class Car{…}
写出程序的输出结果public abstract class A{public A(){Console.WriteLine('A');}public virtual void Fun(){Console.WriteLine("A.Fun()");}}public class B: A{public B(){Console.WriteLine('B');}public new void Fun(){Console.WriteLine("B.Fun()");}public static void Main(){A a = new B();a.Fun();}}
如果有一个类MyFrame是Frame的子类,但它不能被实例化,请写出该类的声明头为( )。A.abstract class Frame. extends MyFrameB.abstract class MyFrame. extends FrameC.class MyFrame. abstract extends FrameD.class Frame. abstract extends MyFrame.
下列哪个类声明是正确的? ( )A.abstract class G2 extends superClass1,superClass2{...}B.abstract public class classmates{...}C.public final class NewClass extends superClass implemnets Interface1{...}D.public abstract class String{...}
下列程序片段中,能通过编译的是( )。 A.public abstract class Animal{ public void speak;}S 下列程序片段中,能通过编译的是( )。A.public abstract class Animal{ public void speak;}B.public abstract class Animal{ public void speak{);}C.public class Animal{ pubilc abstract void speak;}D.public abstract class Animal{ pubile abstract void speak{};}
下列哪个类声明是正确的? ( )A.abstract class G2 extends superClass1, superClass2 {…}B.abstract public class classmates{…}C.public final class NewClass extends superClass implemnets Interfacel{…}D.public abstract class String{…}
以下语句能顺利通过编译: abstract class class1 { } public class mainClass { public static void main(String args[]) { class1 cs1=new class1(); } } 。() 此题为判断题(对,错)。
设有程序如下: abstract class absclass { abstract void method1(); } class conclass extends absclass { public void method1() { System.out.println("子类");} } public class mainclass { public static void main(String args[]) { absclass ac1=new absclass(); //语句1 absclass ac2=new conclass(); //语句2 ac2.method1(); //语句3 } } 则main()方法中的第一条语句(即语句1)可以顺利通过编译。()此题为判断题(对,错)。
以下程序是正确的。 class IamAbstract { final int f; double d; abstract void method1(); } 。() 此题为判断题(对,错)。
Which declaration prevents creating a subclass of an outer class?()A、 Static class FooBar{}B、 Private class FooBar{}C、 Abstract public class FooBar{}D、 Final public class FooBar{}E、 Final abstract class FooBar{}
下列哪个类的声明是正确的()A、abstract final class HI{}B、abstract private move(){}C、protected private number;D、public abstract class Car{}
下列哪个类声明是正确的()。A、abstract final class H1{…}B、abstract private move(){…}C、protected private number;D、public abstract class Car{…}
下列是抽象类的声明的是()A、 abstract class figure{ }B、 class abstract figure{ }C、 seald class figure{ }D、 static class figure{ }
单选题Which declaration prevents creating a subclass of an outer class?()A Static class FooBar{}B Private class FooBar{}C Abstract public class FooBar{}D Final public class FooBar{}E Final abstract class FooBar{}
多选题AnInterface is an interface. AnAdapter0 is a non-abstract, non-final class with a zero argument constructor. An Adapterl is a non-abstract, non-final class without a zero argument constructor, but with a constructor that takes one int argument. Which two construct an anonymous inner class()?AAnAdapter1 aa = new AnAdapter1 () {}BAnAdapter0 aa = new AnAdapter0 () {}CAnAdapter0 aa = new AnAdapter0 (5) {}DAnAdapter1 aa = new AnAdapter1 (5) {}EAnInterface ai = new Anlnterface (5)) {}
单选题public abstract class Shape { int x; int y; public abstract void draw(); public void setAnchor(int x, int y) { this.x = x; this.y = y; } } and a class Circle that extends and fully implements the Shape class. Which is correct?()A Shape s = new Shape(); s.setAnchor(10,10); s.draw();B Circle c = new Shape(); c.setAnchor(10,10); c.draw();C Shape s = new Circle(); s.setAnchor(10,10); s.draw();D Shape s = new Circle(); s-setAnchor(10,10); s-draw();E Circle c = new Circle(); c.Shape.setAnchor(10,10); c.Shape.draw();
单选题现有: 1. interface Animal { 2. void eat(); 3. } 4. 5. // insert code here 6. 7. public class HouseCat extends Feline { 8. public void eat() { } 9. } 和五个声明: abstract class Feline implements Animal { } abstract class Feline implements Animal { void eat(); } abstract class Feline implements Animal { public void eat(); } abstract class Feline implements Animal { public void eat() { } } abstract class Feline implements Animal { abstract public void eat(); } 分别插入到第5行,有几个可以通过编译?()A0B1C2D3
多选题AnInterface is an interface. AnAdapter0 is a non-abstract, non-final class with a zero argument constructor. AnAdapter1 is a non-abstract, non-final class without a zero argument constructor, but with a constructor that takes one int argument. Which two construct an anonymous inner class?()AAnAdapter1 aa=new AnAdapter1(){}BAnAdapter0 aa=new AnAdapter0(){}CAnAdapter0 aa=new AnAdapter0(5){}DAnAdapter1 aa=new AnAdapter1(5){}EAnInterface a1=new AnInterface(5){}
多选题abstract class A { abstract void al(); void a2() { } } class B extends A { void a1() { } void a2() { } } class C extends B { void c1() { } } and: A x = new B(); C y = new C(); A z = new C(); Which four are valid examples of polymorphic method calls?()Ax.a2();Bz.a2();Cz.c1();Dz.a1();Ey.c1();Fx.a1();
单选题现有: interface Animal { void eat () ; } //insert code here public class HouseCat extends Feline { public void eat() { } } 和五个申明 abstract class Feline implements Animal { } abstract class Feline implements Animal { void eat () ; } abstract class Feline implements Animal { public void eat();} abstract class Feline implements Animal { public void eat() {} } abstract class Feline implements Animal { abstract public void eat();} 结果为:()A1B2C3D4
单选题下列是抽象类的声明的是()A abstract class figure{ }B class abstract figure{ }C seald class figure{ }D static class figure{ }