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【单选题】

Given a class Repetition:<img src="https://nimg.ppkao.com/2018-08/longzhengxuan/2018080116125392704.jpg?sign=ff03062e897692abc21f04c034e0af06&t=62d31737" /><br /> Which code should be inserted at line 1 of Demo.java to compile and run Demo to print "pizzapizza"?（）

A、import utils.*;

B、static import utils.*;

C、import utils.Repetition.*;

D、static import utils.Repetition.*;

E、import utils.Repetition.twice();

F、import static utils.Repetition.twice;

H、static import utils.Repetition.twice;

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更多“ Given a class Repetition:<img src="https://nimg.ppkao.com/2018-08/longzhengxuan/2018080116125392704.jpg?sign=ff03062e897692abc21f04c034e0af06&t=62d31737" /><br /> Which code should be inserted at line 1 of Demo.java to compile and run Demo to print "pizzapizza"?（）”相关的问题
第1题
[单选题] Given: 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  

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第2题
[单选题] 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.  

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第3题
[单选题] Given: What is the result?（）

A、Compilation succeeds.  B、Exactly one class does NOT compile.  C、Exactly two classes do NOT compile.  D、Exactly four classes do NOT compile.  E、Exactly three classes do NOT compile.  

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第4题
[] Given: Which code, inserted at line 15, creates an instance of the Point class defined in Line?（） Given: Which code, inserted at line 15, creates an instance of the Point class defined in Line?（）

A、A.Point p = new Point();  B、B.Line.Point p = new Line.Point();  C、C.The Point class cannot be instatiated at line 15.  D、D.Line l = new Line() ; l.Point p = new l.Point();  

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第5题
[多选题] Given: Which two, inserted at line 11, will allow the code to compile?（）

A、public class MinMax<?> {  B、public class MinMax<? extends Number> {  C、public class MinMax<N extends Object> {  D、public class MinMax<N extends Number> {  E、public class MinMax<? extends Object> {  F、public class MinMax<N extends Integer> {  

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第6题
[] Given： Which two classes use the Shape class correctly？（） Given： Which two classes use the Shape class correctly？（）

A、A.public class Circle implements Shape {private int radius；}  B、B.public abstract class Circle extends Shape {private int radius；}  C、C.public class Circle extends Shape {private int radius；public void draw（）；}  D、D.public abstract class Circle implements Shape { private int radius；public void draw（）；}  E、E.public class Circle extends Shape {private int radius；public void draw（） {/* code here*/}}  

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第7题
[] Given: Which two methods, inserted independently at line 17, correctly complete the Sales class?（） Given: Which two methods, inserted independently at line 17, correctly complete the Sales class?（）

A、A.double getSalesAmount() { return 1230.45; }  B、B.public double getSalesAmount() { return 1230.45; }  C、C.private double getSalesAmount() { return 1230.45; }  D、D.protected double getSalesAmount() { return 1230.45; }  

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第8题
[] Given： Which statement is true about the class of an object that can reference the variable base？（） Given： Which statement is true about the class of an object that can reference the variable base？（）

A、A.It can be any class.  B、B.No class has access to base.  C、C.The class must belong to the geometry package.  D、D.The class must be a subclass of the class Hypotenuse.  

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第9题
[多选题] Given a class whose instances, when found in a collection of objects, are sorted by using the compareTo（　）method, which two statements are true?（）

A、The class implements java.lang.Comparable.  B、The class implements java.util.Comparator.  C、The interface used to implement sorting allows this class to define only one sort sequence.  D、The interface used to implement sorting allows this class to define many different sort sequences.  

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第10题
[单选题] Given a class Repetition： 1.package utils； 2. 3.public class Repetition{ 4.public static String twice（Strings）{returns+s；} 5.} and given another class Demo： 1.//insert code here2. 3.public class Demo{ 4.public static void main（String[]args）{ 5.System.out.println（twice（"pizza"））； 6.} 7.} Which code should be inserted at line 1 of Demo.java to compile and run Demo to print“pizzapizza”？（）

A、import utils.*；  B、static import utils.*；  C、importutils.Repetition.*；  D、static importutils.Repetition.*；  E、import utils.Repetition.twice（）；  F、import static utils.Repetition.twice；  H、static import utils.Repetition.twice；  

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