问答题What is the value of the variable output at line 24？

考题 Click the Exhibit button. What is the result? () A.Value is: 8B.Compilation fails.C.Value is: 12D.Value is: -12E.The code runs with no output.F.An exception is thrown at runtime.

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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

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考题 Given:Which two changes, taken together, would guarantee the output: 1, 2, 3, 4, 5, ?() A.move the line 12 print statement into the foo() methodB.change line 7 to public synchronized void go() {C.change the variable declaration on line 2 to private volatile int x;D.wrap the code inside the foo() method with a synchronized( this ) blockE.wrap the for loop code inside the go() method with a synchronized block synchronized(this){ //for loop code here }

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考题 What is the importance of using Virtual Output Queues on ingress Line Cards in a high-end router？（）A、Prevents head-of-line blockingB、Uses less memoryC、Increases forwarding performanceD、Simplifies configuration

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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

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考题 Which statements concerning the value of a member variable are true， when no explicit assignments have been made？（） A、The value of an int is undetermined.B、The value of all numeric types is zero.C、The compiler may issue an error if the variable is used before it is initialized.D、The value of a String variable is "" （empty string）.E、The value of all object variables is null.

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考题 public class X { public static void main （Stringargs） { int a = new int [1] modify（a）； System.out.printIn（a[0]）； } public static void modify （int a） { a[0] ++； } } What is the result？（） A、 The program runs and prints “0”B、 The program runs and prints “1”C、 The program runs but aborts with an exception.D、 An error “possible undefined variable” at line 4 causes compilation to fail.E、 An error “possible undefined variable” at line 9 causes compilation to fail.

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考题 What does it mean for a variable in the Application Editor to be defined as a parameter?（）A、The variable can be used to pass data to and from subflows. B、The value for that variable can be supplied via Application Configuration in Application Administration. C、The value for that variable is defined by the calling application. D、The variable can be used in conditional steps. E、The variable can be used to pass data to and from VoiceXML applications.

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考题 What is the most likely problem with this script （） VAR=1 （（VAR=$VAR+1）） while [ $VAR -It 10 ] do echo $VAR doneA、#!/bin/ksh line is missingB、Variable name VAR is not properly initializedC、Loop variable is not incremented inside the loopD、Replace brackets with braces

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考题 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？（）

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考题 12. Date date = new Date（）； 13. df.setLocale（Locale.ITALY）； 14. String s = df.format（date）； The variable df is an object of type DateFormat that has been initialized in line 11. What is the result if this code is run on December 14， 2000？（） A、 The value of s is 14-dic-2004.B、 The value of s is Dec 14， 2000.C、 An exception is thrown at runtime.D、 Compilation fails because of an error in line 13.

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考题 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

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考题 11. public void someMethod（Object value） { 12. // check for null value .... 20. System.out.println（value.getClass（））； 21. } What， inserted at line 12， is the appropriate way to handle a null value？（） A、 assert value == null；B、 assert value !null， “value is null”；C、 if （value == null） { throw new AssertionException（”value is null”）；D、 if （value == null） { throw new IllegalArgumentException（”value is null”）；

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考题 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 24？（）

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考题 Given a method that must ensure that its parameter is not null： 11. public void someMethod（Object value） { 12. // check for null value ... 20. System.out.println（value.getClass（））； 21. } What inserted at line 12， is the appropriate way to handle a null value？（）A、assert value == null；B、assert value != null， "value is null"；C、if （value == null） { throw new AssertionException（"value is null"）； }D、if （value == null） { throw new IllegalArgumentException（"value is null"）； }

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考题单选题Given the following script， why does the output come out as an empty line instead of "dog"？（）A The $VAR variable was not exportedB The $VAR should have been set as VARC dog needs double quotes around it when setting $VARD The { } should not be around VAR in the echo command

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考题单选题Given： What is the result？（）A Compilation fails due to an error in line 23.B Compilation fails due to an error in line 29.C A ClassCastException occurs in line 29.D A ClassCastException occurs in line 31.E The value of all four objects prints in natural order.

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考题单选题Given: What is the result?（）A BB B, followed by an Exception.C Compilation fails due to an error on line 9.D Compilation fails due to an error on line 14.E An Exception is thrown with no other output.

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考题多选题Which statements concerning the value of a member variable are true， when no explicit assignments have been made？（）AThe value of an int is undetermined.BThe value of all numeric types is zero.CThe compiler may issue an error if the variable is used before it is initialized.DThe value of a String variable is （empty string）.EThe value of all object variables is null.

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考题单选题Click the Exhibit button. What is the result？（）A Compilation of class A fails.B Line 28 prints the value 3 to System.out.C Line 28 prints the value 1 to System.out.D A runtime error occurs when line 25 executes.E Compilation fails because of an error on line 28.

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考题单选题Given： What is the result？（）A X， followed by an Exception.B No output， and an Exception is thrown.C Compilation fails due to an error on line 14.D Compilation fails due to an error on line 16.E Compilation fails due to an error on line 17.

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考题单选题What is the result？（）A Compilation of class A fails.B Line 28 prints the value 3 to System.out.C Line 28 prints the value 1 to System.out.D A runtime error occurs when line 25 executes.E Compilation fails because of an error on line 28.

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考题单选题What does it mean for a variable in the Application Editor to be defined as a parameter?（）A The variable can be used to pass data to and from subflows. B The value for that variable can be supplied via Application Configuration in Application Administration. C The value for that variable is defined by the calling application. D The variable can be used in conditional steps. E The variable can be used to pass data to and from VoiceXML applications.

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考题单选题11. public void someMethod（Object value） { 12. // check for null value .... 20. System.out.println（value.getClass（））； 21. } What， inserted at line 12， is the appropriate way to handle a null value？（）A assert value == null；B assert value !null， “value is null”；C if （value == null） { throw new AssertionException（”value is null”）；D if （value == null） { throw new IllegalArgumentException（”value is null”）；

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考题单选题Given: What is the result?（）A The code runs with no output.B An exception is thrown at runtime.C Compilation fails because of an error in line 20.D Compilation fails because of an error in line 21.E Compilation fails because of an error in line 23.F Compilation fails because of an error in line 25.

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考题单选题Given: What is the result?（）A BB The code runs with no output.C Compilation fails because of an error in line 12.D Compilation fails because of an error in line 15.E Compilation fails because of an error in line 18.

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考题单选题12. Date date = new Date（）； 13. df.setLocale（Locale.ITALY）； 14. String s = df.format（date）； The variable df is an object of type DateFormat that has been initialized in line 11. What is the result if this code is run on December 14， 2000？（）A The value of s is 14-dic-2004.B The value of s is Dec 14， 2000.C An exception is thrown at runtime.D Compilation fails because of an error in line 13.