网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
package test； class Target{ public String name="hello"； } What can directly access and change the value of the variable name？（）
- A、any class
- B、only the Target class
- C、any class in the test package
- D、any class that extends Target
参考答案
更多 “ package test； class Target{ public String name="hello"； } What can directly access and change the value of the variable name？（）A、any classB、only the Target classC、any class in the test packageD、any class that extends Target” 相关考题
考题
package test;class Target{public String name=hello;}What can directly access and change the value of the variable name?()
A.any classB.only the Target classC.any class in the test packageD.any class that extends Target
考题
Given:What can directly access and change the value of the variable name?()
A. any classB. only the Target classC. any class in the test packageD. any class that extends Target
考题
Given:Which statement is true about the class of an object that can reference the variable base? ()
A.It can be any class.B.No class has access to base.C.The class must belong to the geometry package.D.The class must be a subclass of the class Hypotenuse.
考题
下列哪个选项的java源文件代码片段是不正确的?A．package testpackage； public class Test{ }B．import java. io. *； package testpaekage； public class Test { }C．import java.io.*； class Person { } public class Test { }D．import java.io.*； import java. awt.*； public class Test{ }
考题
使下列程序正常运行并且输出“Hello!”，横线处应填写的内容是（ ）。 class Test { public static void main(string[]args){ Test t=new Test； start； } Public void run{ System．out．println("Hello!¨)； )A.extends ThreadB.extends FloatC.extends IostreamD.extends Stdio
考题
下列哪个选项的java源文件程序段是不正确的? ( )A．package testpackage； public class Test{ }B．import java.io.*； package testpackage； public class Test{ }C．import java.i.*； class Person{} public class Test{ }D．import java.io.*； import java.awt.*； public class Test { }
考题
1. public class Target { 2. private int i = 0； 3. public int addOne（） { 4. return ++i； 5. } 6. } And： 1. public class Client { 2. public static void main（String[] args） { 3. System.out.println（new Target（）.addOne（））； 4. } 5. } Which change can you make to Target without affecting Client？（） A、 Line 4 of class Target can be changed to return i++；B、 Line 2 of class Target can be changed to private int i = 1；C、 Line 3 of class Target can be changed to private int addOne（） {D、 Line 2 of class Target can be changed to private Integer i = 0；
考题
package test1； public class Test1 { static int x = 42； } package test2； public class Test2 extends test1.Test1 { public static void main（String[] args） { System.out.println（“x = “ + x）； } } What is the result？（） A、 x = 0B、 x = 42C、 Compilation fails because of an error in line 2 of class Test2.D、 Compilation fails because of an error in line 3 of class Test1.E、 Compilation fails because of an error in line 4 of class Test2.
考题
class A { public A（） { System.out.println（“hello from a”）； } } class B extends A { public B （） { System.out.println（“hello from b”）； super（）； } } public class Test { public static void main（String args[]） { A a = new B（）； } } What is the result when main is executed？（） A、 Compilation fails.B、 hello from aC、 hello from bD、 hello from b hello from aE、 hello from a hello from b
考题
public class Employee{ private String name； public Employee（String name）{ this.name = name； } public String getName（）{ return name； } } public class Manager extends Employee{ private String department； public Manager（String name，String department）{ this.department = department； super（name）； System.out.println（getName（））； } } 执行语句new Manager（“smith”，”SALES”）后程序的输出是哪项？（） A、 smithB、 nullC、 SALESD、 编译错误
考题
public class Employee{ private String name； public Employee（String name）{ this.name = name； } public void display（）{ System.out.print（name）； } } public class Manager extends Employee{ private String department； public Manager（String name，String department）{ super（name）； this.department = department； } public void display（）{ System.out.println（ super.display（）+”，”+department）； } } 执行语句new Manager（“smith”，”SALES”）后程序的输出是哪项？（） A、 smith，SALESB、 null，SALESC、 smith，nullD、 null，null
考题
现有： class A {public String name="a"} class B extends A {public String name="b"} 执行如下代码后的结果是哪项？（） A a=new B（）； System.out.println（a.name）； A、 aB、 bC、编译失败D、运行时抛出异常
考题
package geometry； public class Hypotenuse { public InnerTriangle it = new InnerTriangle（）； class InnerTriangle { public int base； public int height； } } Which is true about the class of an object that can reference the variable base？ （）A、 It can be any class.B、 No class has access to base.C、 The class must belong to the geometry package.D、 The class must be a subclass of the class Hypotenuse.
考题
public class Plant { private String name； public Plant（String name） { this.name = name； } public String getName（） { return name； } } public class Tree extends Plant { public void growFruit（） { } public void dropLeaves（） { } } Which is true？（） A、 The code will compile without changes.B、 The code will compile if public Tree（） { Plant（）； } is added to the Tree class.C、 The code will compile if public Plant（） { Tree（）； } is added to the Plant class.D、 The code will compile if public Plant（） { this（”fern”）； } is added to the Plant class.E、 The code will compile if public Plant（） { Plant（”fern”）； } is added to the Plant class.
考题
public class Employee{ private String name； public Employee（String name）{ this.name = name； } public String getName（）{ return name； } } public class Manager extends Employee{ public Manager（String name）{ System.out.println（getName（））； } } 执行语句new Manager（“smith”）后程序的输出是哪项？（） A、 smithB、 nullC、 编译错误D、 name
考题
10. public class ClassA { 11. public void methodA（） { 12. ClassB classB = new ClassB（）； 13. classB.getValue（）； 14. } 15. } And： 20. class ClassB { 21. public ClassC classC； 22. 23. public String getValue（） { 24. return classC.getValue（）； 25. } 26. } And： 30. class ClassC { 31. public String value； 32. 33. public String getValue（） { 34. value = “ClassB”； 35. return value； 36. } 37. } Given： ClassA a = new ClassA（）； a.methodA（）； What is the result？（）A、 Compilation fails.B、 ClassC is displayed.C、 The code runs with no output.D、 An exception is thrown at runtime.
考题
Which three statements are true?（）A、A final method in class X can be abstract if and only if X is abstract.B、A protected method in class X can be overridden by any subclass of X.C、A private static method can be called only within other static methods in class X.D、A non-static public final method in class X can be overridden in any subclass of X.E、A public static method in class X can be called by a subclass of X without explicitly referencing the class X.F、A method with the same signature as a private final method in class X can be implemented in a subclass of X.G、A protected method in class X can be overridden by a subclass of X only if the subclass is in the same package as X.
考题
Given： 1.package test； 2. 3.class Target { 4.public String name = "hello"；5.} What can directly access and change the value of the variable name？（）A、any classB、only the Target classC、any class in the test packageD、any class that extends Target
考题
单选题package geometry； public class Hypotenuse { public InnerTriangle it = new InnerTriangle（）； class InnerTriangle { public int base； public int height； } } Which is true about the class of an object that can reference the variable base？ （）A
It can be any class.B
No class has access to base.C
The class must belong to the geometry package.D
The class must be a subclass of the class Hypotenuse.
考题
单选题package test； class Target{ public String name="hello"； } What can directly access and change the value of the variable name？（）A
any classB
only the Target classC
any class in the test packageD
any class that extends Target
考题
单选题public class Plant { private String name； public Plant（String name） { this.name = name； } public String getName（） { return name； } } public class Tree extends Plant { public void growFruit（） { } public void dropLeaves（） { } } Which is true？（）A
The code will compile without changes.B
The code will compile if public Tree（） { Plant（）； } is added to the Tree class.C
The code will compile if public Plant（） { Tree（）； } is added to the Plant class.D
The code will compile if public Plant（） { this（”fern”）； } is added to the Plant class.E
The code will compile if public Plant（） { Plant（”fern”）； } is added to the Plant class.
考题
单选题public class Employee{ private String name； public Employee（String name）{ this.name = name； } public String getName（）{ return name； } } public class Manager extends Employee{ public Manager（String name）{ System.out.println（getName（））； } } 执行语句new Manager（“smith”）后程序的输出是哪项？（）A
smithB
nullC
编译错误D
name
考题
单选题Given： 1.package test； 2. 3.class Target { 4.public String name = "hello"；5.} What can directly access and change the value of the variable name？（）A
any classB
only the Target classC
any class in the test packageD
any class that extends Target
考题
单选题Given： 1.package test； 2. 3.class Target { 4.public String name = "hello"；5.} What can directly access and change the value of the variable name？（）A
any classB
only the Target classC
any class in the test packageD
any class that extends Target
考题
单选题package test1； public class Test1 { static int x = 42； } package test2； public class Test2 extends test1.Test1 { public static void main（String[] args） { System.out.println（“x = “ + x）； } } What is the result？（）A
x = 0B
x = 42C
Compilation fails because of an error in line 2 of class Test2.D
Compilation fails because of an error in line 3 of class Test1.E
Compilation fails because of an error in line 4 of class Test2.
考题
单选题class A { public A（） { System.out.println（“hello from a”）； } } class B extends A { public B （） { System.out.println（“hello from b”）； super（）； } } public class Test { public static void main（String args[]） { A a = new B（）； } } What is the result when main is executed？（）A
Compilation fails.B
hello from aC
hello from bD
hello from b hello from aE
hello from a hello from b
考题
单选题package test； class Target { public String name = “hello”； } What can directly access and change the value of the variable name？（）A
any classB
only the Target classC
any class in the test packageD
any class that extends Target
热门标签
最新试卷