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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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更多 “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.” 相关考题
考题
Click the Exhibit button. Which statement is true about the classes and interfaces in the exhibit?()
A.Compilation will succeed for all classes and interfaces.B.Compilation of class C will fail because of an error in line 2.C.Compilation of class C will fail because of an error in line 6.D.Compilation of class AImpl will fail because of an error in line 2
考题
Given:What is the result when method testIfA is invoked?()
A.TrueB.Not trueC.An exception is thrown at runtime.D.Compilation fails because of an error at line 12.E.Compilation fails because of an error at line 19.
考题
Click the Exhibit button.Given:What is the result?()
A.Line 26 prints a to System.out.B.Line 26 prints b to System.out.C.An exception is thrown at line 26 at runtime.D.Compilation of class A will fail due to an error in line 6.
考题
1.public classA{ 2.public String doit（intx，inty）{ 3.return"a"； 4.} 5. 6.public String doit（int...vals）{ 7.return"b"； 8.} 9.} And： 25.A a=new A（）； 26.System.out.println（a.doit（4，5））； What is the result？（）A、Line 26 prints "a" to System.out.B、Line 26 prints "b" to System.out.C、An exception is thrown at line 26 at runtime.D、Compilation of class A will fail due to an error in line 6.
考题
1. public class A { 2. public void doit（） { 3. } 4. public String doit（） { 5. return “a”； 6. } 7. public double doit（int x） { 8. return 1.0； 9. } 10.} What is the result？（） A、 An exception is thrown at runtime.B、 Compilation fails because of an error in line 7.C、 Compilation fails because of an error in line 4.D、 Compilation succeeds and no runtime errors with class A occur.
考题
23. Object [] myObjects = { 24. new integer（12）， 25. new String（”foo”）， 26. new integer（5）， 27. new Boolean（true） 28. }； 29. Arrays.sort（myObjects）； 30. for（ int i=0； i31. System.out.print（myObjects[i].toString（））； 32. System.out.print（” “）； 33. } 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.
考题
package foo； import java.util.Vector； private class MyVector extends Vector { int i = 1； public MyVector（） { i = 2； } } public class MyNewVector extends MyVector { public MyNewVector（） { i = 4； } public static void main（String args[]） { MyVector v = new MyNewVector（）； } } What is the result？（）A、 Compilation succeeds.B、 Compilation fails because of an error at line 5.C、 Compilation fails because of an error at line 6.D、 Compilation fails because of an error at line 14.E、 Compilation fails because of an error at line 17.
考题
1. public class Boxer1 { 2. Integer i； 3. int x； 4. public Boxer1（int y） { 5. x=i+y； 6. System.out.println（x）； 7. } 8. public static void main（String[] args） { 9. new Boxer1（new Integer（4））； 10. } 11. } What is the result？（） A、 The value “4” is printed at the command line.B、 Compilation fails because of an error in line 5.C、 Compilation fails because of an error in line 9.D、 A NullPointerException occurs at runtime.E、 A NumberFormatException occurs at runtime.F、 An IllegalStateException occurs at runtime.
考题
1. interface TestA { String toString（）； } 2. public class Test { 3. public static void main（String[] args） { 4. System.out.println（new TestA（） { 5. public String toString（） { return “test”； } 6. } 7. } 8. } What is the result？（） A、 testB、 nullC、 An exception is thrown at runtime.D、 Compilation fails because of an error in line 1.E、 Compilation fails because of an error in line 4.F、 Compilation fails because of an error in line 5.
考题
1. public class A { 2. 3. private int counter = 0； 4. 5. public static int getInstanceCount（） { 6. return counter； 7. } 8. 9. public A（） { 10. counter++； 11. } 12. 13. } Given this code from Class B： 25.A a1 =new A（）； 26. A a2 =new A（）； 27. A a3 =new A（）； 28. System.out.printIn（A.getInstanceCount（） ）； 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.
考题
1. public class A { 2. public String doit（int x， int y） { 3. return “a”； 4. } 5. 6. public String doit（int... vals） { 7. return “b”； 8. } 9. } Given： 25. A a=new A（）； 26. System.out.println（a.doit（4， 5））； What is the result？（） A、 Line 26 prints “a” to System.out.B、 Line 26 prints „b” to System.out.C、 An exception is thrown at line 26 at runtime.D、 Compilation of class A will fail due to an error in line 6.
考题
单选题Click the Exhibit button. Which statement is true about the classes and interfaces in the exhibit?（）A
Compilation will succeed for all classes and interfaces.B
Compilation of class C will fail because of an error in line 2.C
Compilation of class C will fail because of an error in line 6.D
Compilation of class AImpl will fail because of an error in line 2.
考题
单选题Given: What is the result?（）A
testB
nullC
An exception is thrown at runtime.D
Compilation fails because of an error in line 1.E
Compilation fails because of an error in line 4.F
Compilation fails because of an error in line 5.
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.
考题
单选题Click the Exhibit button. Given this code from Class B： 25.A a1 = new A（）； 26.A a2 = new A（）； 27.A a3 = new A（）； 28.System.out.println（A.getInstanceCount（））； 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.
考题
单选题Click the Exhibit button. Given this code from Class B： 25. A a1 = new A（）； 26. A a2 = new A（）； 27. A a3 = new A（）； 28. System.out.println（A.getInstanceCount（））； 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
Compilation fails because of an error on line 28.E
A runtime error occurs when line 25 executes.
考题
单选题Click the Exhibit button. What is the result？（）A
Line 26 prints "a" to System.out.B
Line 26 prints "b" to System.out.C
An exception is thrown at line 26 at runtime.D
Compilation of class A will fail due to an error in line 6.
考题
单选题package foo； import java.util.Vector； private class MyVector extends Vector { int i = 1； public MyVector（） { i = 2； } } public class MyNewVector extends MyVector { public MyNewVector（） { i = 4； } public static void main（String args[]） { MyVector v = new MyNewVector（）； } } What is the result？（）A
Compilation succeeds.B
Compilation fails because of an error at line 5.C
Compilation fails because of an error at line 6.D
Compilation fails because of an error at line 14.E
Compilation fails because of an error at line 17.
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.
考题
单选题1. public class Boxer1 { 2. Integer i； 3. int x； 4. public Boxer1（int y） { 5. x=i+y； 6. System.out.println（x）； 7. } 8. public static void main（String[] args） { 9. new Boxer1（new Integer（4））； 10. } 11. } What is the result？（）A
The value “4” is printed at the command line.B
Compilation fails because of an error in line 5.C
Compilation fails because of an error in line 9.D
A NullPointerException occurs at runtime.E
A NumberFormatException occurs at runtime.F
An IllegalStateException occurs at runtime.
考题
单选题1. interface TestA { String toString（）； } 2. public class Test { 3. public static void main（String[] args） { 4. System.out.println（new TestA（） { 5. public String toString（） { return “test”； } 6. } 7. } 8. } What is the result？（）A
testB
nullC
An exception is thrown at runtime.D
Compilation fails because of an error in line 1.E
Compilation fails because of an error in line 4.F
Compilation fails because of an error in line 5.
考题
单选题23. Object [] myObjects = { 24. new integer（12）， 25. new String（”foo”）， 26. new integer（5）， 27. new Boolean（true） 28. }； 29. Arrays.sort（myObjects）； 30. for（ int i=0； i31. System.out.print（myObjects[i].toString（））； 32. System.out.print（” “）； 33. } 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.
考题
单选题Given: What is the result when method testIfA is invoked?（）A
TrueB
Not trueC
An exception is thrown at runtime.D
Compilation fails because of an error at line 12.E
Compilation fails because of an error at line 19.
考题
单选题1. public class A { 2. 3. private int counter = 0； 4. 5. public static int getInstanceCount（） { 6. return counter； 7. } 8. 9. public A（） { 10. counter++； 11. } 12. 13. } Given this code from Class B： 25.A a1 =new A（）； 26. A a2 =new A（）； 27. A a3 =new A（）； 28. System.out.printIn（A.getInstanceCount（） ）； 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.
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.
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.
考题
单选题What is the result（）？A
The program runs and prints “ I = 1 ， j = 0”B
The program runs and prints “ I = 1 ， j = 4”C
The program runs and prints “ I = 3 ， j = 4”D
The program runs and prints “ I = 3 ， j = 0”E
An error at line 4 cause compilation to fail.F
An error at line 7 cause compilation to fail.
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