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单选题
Given： What is the result？（）
A
No output is produced. 1 2 3
B
No output is produced. 2 3 4
C
No output is produced. 1 2 3 4
D
An exception is thrown at runtime. 1 2 3
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考题
Click the Exhibit button. 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
Given:What is the output?()
A.42B.420C.462D.42042E.Compilation fails.F.An exception is thrown at runtime.
考题
With the following CLI command output performed on an LNS: show l2tp session L2TP session 1／2／3 is up .What is the meaning of the numeric values in the output?()
A.session 1, destination 2, tunnel 3B.destination 1, session 2, tunnel 3C.tunnel 1, session 2, destination 3D.destination 1, tunnel 2, session 3
考题
11. String test= “a1b2c3”； 12. String[] tokens = test.split（”//d”）； 13. for（String s： tokens） System.out.print（s +“ “）； What is the result？（） A、 a b cB、 1 2 3C、 a1b2c3D、 a1 b2 c3E、 Compilation fails.F、 The code runs with no output.G、 An exception is thrown at runtime.
考题
1. public class A { 2. void A（） { 3. System.out.println（“Class A”）； 4. } 5. public static void main（String[] args） { 6. new A（）； 7. } 8. } What is the result？（） A、 Class AB、 Compilation fails.C、 An exception is thrown at line 2.D、 An exception is thrown at line 6.E、 The code executes with no output.
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public class Alpha{ public static void main（ string[] args ）{ if （ args.length == 2 ） { if （ args.[0].equalsIgnoreCase（“-b”） ） System.out.println（ new Boolean（ args[1] ））； } } } And the code is invoked by using the command： java Alpha –b TRUE What is the result？（） A、 trueB、 nullC、 falseD、 Compilation fails.E、 The code runs with no output.F、 An exception is thrown at runtime.
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1. public class Test { 2. public static String output =””； 3. 4. public static void foo（int i） { 5. try { 6. if（i==1） { 7. throw new Exception（）； 8. } 9. output += “1”； 10. } 11. catch（Exception e） { 12. output += “2”； 13. return； 14. } 15. finally { 16. output += “3”；17. } 18. output += “4”； 19. } 20. 21. public static void main（String args[]） { 22. foo（0）； 23. foo（1）； 24. 25. }26. } What is the value of the variable output at line 23？（）
考题
public class Yippee { public static void main（String [] args） { for（int x = 1； x args.length； x++） { System.out.print（args[x] +“ “）； } } } and two separate command line invocations： java Yippee java Yippee 1234 What is the result？（） A、 No output is produced. 123B、 No output is produced. 234C、 No output is produced. 1234D、 An exception is thrown at runtime. 123E、 An exception is thrown at runtime. 234F、 An exception is thrown at rijntime. 1234
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int i = 0； for （； i 4； i += 2） { System.out.print（i + “”）； } System.out.println（i）； What is the result？（） A、 0 2 4B、 0 2 4 5C、 0 1 2 3 4D、 Compilation fails.E、 An exception is thrown at runtime.
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public static Iterator reverse（List list） { Collections.reverse（list）； return list.iterator（）； } public static void main（String[] args） { List list = new ArrayList（）； list.add（” 1”）； list.add（”2”）； list.add（”3”）； for （Object obj： reverse（list）） System.out.print（obj + “，”）； } What is the result？（） A、 3，2，1，B、 1，2，3，C、 Compilation fails.D、 The code runs with no output.E、 An exception is thrown at runtime.
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public classYippee{ public static void main（String[]args）{ for（intx=1；xSystem.out.print（args[x]+""）； } } } and two separate command line invocations：j avaYippee javaYippee1234 What is the result？（）A、No output is produced. 123B、No output is produced. 234C、No output is produced. 1234D、An exception is thrown at runtime. 123E、An exception is thrown at runtime. 234F、An exception is thrown at runtime. 1234
考题
public class ClassA { public int getValue（） { int value=0； boolean setting = true； String title=”Hello”； （value || （setting title == “Hello”）） { return 1； } （value == 1 title.equals（”Hello”）） { return 2； } } } And： ClassA a = new ClassA（）； a.getValue（）； What is the result？（） A、 1B、 2C、 Compilation fails.D、 The code runs with no output.E、 An exception is thrown at runtime.
考题
With the following CLI command output performed on an LNS: show l2tp session L2TP session 1/2/3 is up .What is the meaning of the numeric values in the output?（）A、session 1, destination 2, tunnel 3B、destination 1, session 2, tunnel 3C、tunnel 1, session 2, destination 3D、destination 1, tunnel 2, session 3
考题
单选题public class Yippee { public static void main（String [] args） { for（int x = 1； x args.length； x++） { System.out.print（args[x] +“ “）； } } } and two separate command line invocations： java Yippee java Yippee 1234 What is the result？（）A
No output is produced. 123B
No output is produced. 234C
No output is produced. 1234D
An exception is thrown at runtime. 123E
An exception is thrown at runtime. 234F
An exception is thrown at rijntime. 1234
考题
单选题Given: What is the result?（）A
2B
3C
12D
23E
123F
Compilation fails.G
An exception is thrown at runtime.
考题
单选题Given: What is the output?（）A
42B
420C
462D
42042E
Compilation fails.F
An exception is thrown at runtime.
考题
单选题public static Iterator reverse（List list） { Collections.reverse（list）； return list.iterator（）； } public static void main（String[] args） { List list = new ArrayList（）； list.add（” 1”）； list.add（”2”）； list.add（”3”）； for （Object obj： reverse（list）） System.out.print（obj + “，”）； } What is the result？（）A
3，2，1，B
1，2，3，C
Compilation fails.D
The code runs with no output.E
An exception is thrown at runtime.
考题
单选题Click the Exhibit button. What is the result？（）A
The code will deadlock.B
The code may run with output "2 0 6 4".C
The code may run with no output.D
The code may run with output "0 6".E
An exception is thrown at runtime.F
The code may run with output "0 2 4 6".
考题
单选题Click the Exhibit button. 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
单选题With the following CLI command output performed on an LNS: show l2tp session L2TP session 1/2/3 is up .What is the meaning of the numeric values in the output?（）A
session 1, destination 2, tunnel 3B
destination 1, session 2, tunnel 3C
tunnel 1, session 2, destination 3D
destination 1, tunnel 2, session 3
考题
单选题public classYippee{ public static void main（String[]args）{ for（intx=1；xSystem.out.print（args[x]+""）； } } } and two separate command line invocations：j avaYippee javaYippee1234 What is the result？（）A
No output is produced. 123B
No output is produced. 234C
No output is produced. 1234D
An exception is thrown at runtime. 123E
An exception is thrown at runtime. 234F
An exception is thrown at runtime. 1234
考题
单选题public class Alpha{ public static void main（ string[] args ）{ if （ args.length == 2 ） { if （ args.[0].equalsIgnoreCase（“-b”） ） System.out.println（ new Boolean（ args[1] ））； } } } And the code is invoked by using the command： java Alpha –b TRUE What is the result？（）A
trueB
nullC
falseD
Compilation fails.E
The code runs with no output.F
An exception is thrown at runtime.
考题
单选题11. String test= “a1b2c3”； 12. String[] tokens = test.split（”//d”）； 13. for（String s： tokens） System.out.print（s +“ “）； What is the result？（）A
a b cB
1 2 3C
a1b2c3D
a1 b2 c3E
Compilation fails.F
The code runs with no output.G
An exception is thrown at runtime.
考题
单选题public class ClassA { public int getValue（） { int value=0； boolean setting = true； String title=”Hello”； （value || （setting title == “Hello”）） { return 1； } （value == 1 title.equals（”Hello”）） { return 2； } } } And： ClassA a = new ClassA（）； a.getValue（）； What is the result？（）A
1B
2C
Compilation fails.D
The code runs with no output.E
An exception is thrown at runtime.
考题
单选题1. public class A { 2. void A（） { 3. System.out.println（“Class A”）； 4. } 5. public static void main（String[] args） { 6. new A（）； 7. } 8. } What is the result？（）A
Class AB
Compilation fails.C
An exception is thrown at line 2.D
An exception is thrown at line 6.E
The code executes with no output.
考题
单选题Given: What is the result?（）A
HelloB
Hello WorldC
Compilation fails.D
Hello World 5E
The code runs with no output.F
An exception is thrown at runtime.
考题
单选题Given: What is the result?（）A
1B
2C
12D
Compilation fails.E
No output is produced.F
An exception is thrown at runtime.
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