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单选题
public class SwitchTest { public static void main （String args） { System.out.PrintIn（“value =” +switchIt（4））； } public static int switchIt（int x） { int j = 1； switch （x） { case 1： j++； case 2： j++； case 3： j++； case 4： j++； case 5： j++； default：j++； } return j + x； } } What is the output from line 3？ （）
A
Value = 3
B
Value = 4
C
Value = 5
D
Value = 6
E
Value = 7
F
Value = 8
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更多 “单选题public class SwitchTest { public static void main （String args） { System.out.PrintIn（“value =” +switchIt（4））； } public static int switchIt（int x） { int j = 1； switch （x） { case 1： j++； case 2： j++； case 3： j++； case 4： j++； case 5： j++； default：j++； } return j + x； } } What is the output from line 3？ （）A Value = 3B Value = 4C Value = 5D Value = 6E Value = 7F Value = 8” 相关考题
考题
单选题public class Test { public static void main（ String[] args） { String foo = args[1]； String bar = args[2]； String baz = args[3]； System.out.println（“baz = “ + baz）； } } And the command line invocation： java Test red green blue What is the result？（）A
baz =B
baz = nullC
baz = blueD
Compilation fails.E
An exception is thrown at runtime.
考题
单选题You want a class to have access to members of another class in the same package. Which is the most restrictive access modifier that will accomplish that will accomplish this objective？（）A
PublicB
PrivateC
ProtectedD
TransientE
No access modifier is required.
考题
单选题A class games.cards.Poker is correctly defined in the jar file Poker.jar. A user wants to execute the main method of Poker on a UNIX system using the command： java games.cards.Poker What allows the user to do this？（）A
put Poker.jar in directory /stuff/java，and set the CLASSPATH to include /stuff/javaB
put Poker.jar in directory /stuff/java，and set the CLASSPATH to include /stuff/java/*.jarC
Put Poker.jar in directory /stuff/java，and set the CLASSPATH to include /stuff/java/Poker.jarD
put Poker.jar in directory /stuff/java/games/cards，and set the CLASSPATH to include /stuff/javaE
put Poker.jar in directory /stuff/java/games/cards，and set the CLASSPATH to include /stuff/java/*.jarF
put Poker.jar in directory /stuff/java/games/cards，and set the CLASSPATH to include /stuff/java/Poker.jar
考题
多选题Given the following class， which statements can be inserted at position 1 without causing the code to fail compilation？（） public class Q6db8 { int a； int b = 0； static int c； public void m（） { int d； int e = 0； // Position 1 } }Aa++；Bb++；Cc++；Dd++；Ee++；
考题
单选题What is the result？（）A
Compilation fails.B
aAaA aAa AAaa AaAC
AAaa AaA aAa aAaAD
AaA AAaa aAaA aAaE
aAa AaA aAaA AAaaF
An exception is thrown at runtime.
考题
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）{}
考题
多选题import java.util.*； public class NameList { private List names = new ArrayList（）； public synchronized void add（String name） { names.add（name）； } public synchronized void printAll（） { for （int i = 0； i System.out.print（names.get（i） +“ “）； } } public static void main（String[] args） { final NameList sl = new NameList（）； for（int i=0；iAAn exception may be thrown at runtime.BThe code may run with no output， without exiting.CThe code may rum with output “A B A B C C “， then exit.DThe code may ruin with output “A A A B C A B C C “， then exit.EThe code may rum with output “A B C A B C A B C “， then exit.FThe code may ruin with output “A B C A A B C A B C “， then exit.
考题
单选题1. public class returnIt （ 2. returnType methodA（byte x， double y） （ 3. return （short） x/y * 2； 4. ） 5. ） What is the valid returnType for methodA in line 2？（）A
IntB
ByteC
LongD
ShortE
FloatF
Double
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