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单选题
class Car implements Serializable { } class Ford extends Car { } 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
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考题
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考题
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class Man { private BestFriend }
考题
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考题
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考题
单选题现自: 1. interface Color { } 2. interface Weight { } 3. //insert code here 和以下足六个声明: class Boat extends Color, extends Weight { } class Boat extends Color and Weight { } class Boat extends Color, Weight { } class Boat implements Color, implements Weight { } class Boat implements Color and Weight { } class Boat implements Color, Weight { } 分别插入到第3行,有多少行可以编译? ()A
0B
1C
2D
3
考题
单选题现自: class Car implements Serializable () class Ford extends Car {} 如果试图序列化一个Ford实例,结果为()A
编译失败B
两个对象被序列化C
—个对象被序列化D
运行时异常被抛出
考题
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:()A
1B
2C
3D
4
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