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public class Yippee2 { static public void main（String [] yahoo） { for（int x= 1； x
- A、a b
- B、b c
- C、a b c
- D、 Compilation fails.
- E、 An exception is thrown at runtime.
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更多 “ public class Yippee2 { static public void main（String [] yahoo） { for（int x= 1； xSystem.out.print（yahoo[x] + “ “）； } } } and the command line invocation： java Yippee2 a b c What is the result？（） A、a bB、b cC、a b cD、 Compilation fails.E、 An exception is thrown at runtime.” 相关考题
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public class Yippee2{stati cpublic void main(String[]yahoo){for(intx=1;xSystem.out.print(yahoo[x]＋);}}}and the command line invocation:java Yippee2 a b cWhat is the result?()
A.abB.bcC.abcD.Compilation fails.E.An exception is thrown at runtime.
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public class test（ public static void main（string[]args）{ string foo = args [1]； string foo = args [2]； string foo = args [3]； } ） And command line invocation： Java Test red green blue What is the result？（） A、 Baz has the value of “”B、 Baz has the value of nullC、 Baz has the value of “red”D、 Baz has the value of “blue”E、 Bax has the value of “green”F、 The program throws an exception.
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public class Foo { public void main（ String[] args ） { System.out.println（ “Hello” + args[0] ）； } } What is the result if this code is executed with the command line？（）A、 HelloB、 Hello FooC、 Hello worldD、 Compilation fails.E、 The code does not run.
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package test1； public class Test1 { static int x = 42； } package test2； public class Test2 extends test1.Test1 { public static void main（String[] args） { System.out.println（“x = “ + x）； } } What is the result？（） A、 x = 0B、 x = 42C、 Compilation fails because of an error in line 2 of class Test2.D、 Compilation fails because of an error in line 3 of class Test1.E、 Compilation fails because of an error in line 4 of class Test2.
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interface DeclareStuff{ public static final int EASY = 3； void doStuff（int t）； } public class TestDeclare implements DeclareStuff { public static void main（String [] args） { int x=5； new TestDeclare（）.doStuff（++x）； } void doStuff（int s） { s += EASY + ++s； System.out.println（”s “ + s）； } } What is the result？（） A、 s 14B、 s 16C、 s 10D、 Compilation fails.E、 An exception is thrown at runtime.
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public class Yippee2{ stati cpublic void main（String[]yahoo）{ for（intx=1；xA、abB、bcC、abcD、Compilation fails.E、An exception is thrown at runtime.
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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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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.
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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.
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public class Test { public static void replaceJ（string text） { text.replace （‘j’， ‘l’）； } public static void main（String args[]） { string text = new String （“java”） replaceJ（text）； system.out.printIn（text）； } } What is the result？（） A、 The program prints “lava”B、 The program prints “java”C、 An error at line 7 causes compilation to fail.D、 Compilation succeeds but the program throws an exception.
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public class IfTest （ public static void main（string[]args） { int x = 3； int y = 1； if （x = y） system.out.printIn（“Not equal”）； else system.out.printIn（“Equal”）； } ） What is the result？（） A、 The output is “Equal”B、 The output in “Not Equal”C、 An error at line 5 causes compilation to fall.D、 The program executes but does not print a message.
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public class Test { private static int[] x； public static void main（String[] args） { System.out.println（x[0]）； } } What is the result？（） A、 0B、 nullC、 Compilation fails.D、 A NullPointerException is thrown at runtime.E、 An ArrayIndexOutOfBoundsException is thrown at runtime.
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public class test（ public static void main（stringargs）{ string foo = args [1]； string foo = args ； string foo = args ； } ） And command line invocation： Java Test red green blue What is the result？ （） A、 Baz has the value of “”B、 Baz has the value of nullC、 Baz has the value of “red”D、 Baz has the value of “blue”E、 Bax has the value of “green”F、 The program throws an exception.
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public class Test { public static void main（String[] args） { int x = 0； assert （x 0）： “assertion failed”； System.out.println（“finished”）； } } What is the result？（） A、 finishedB、 Compilation fails.C、 An AssertionError is thrown.D、 An AssertionError is thrown and finished is output.
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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（）； } } The file MyNewVector.java is shown in the exhibit. What is the result？（）A、 Compilation will succeed.B、 Compilation will fail at line 5.C、 Compilation will fail at line 6.D、 Compilation will fail at line 14.E、 Compilation will fail at line 17.
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class A { public int getNumber（int a） { return a + 1； } } class B extends A { public int getNumber （int a） { return a + 2 } public static void main （String args） { A a = new B（）； System.out.printIn（a.getNumber（0））； } } What is the result？ （） A、 Compilation succeeds and 1 is printed.B、 Compilation succeeds and 2 is printed.C、 An error at line 8 causes compilation to fail.D、 An error at line 13 causes compilation to fail.E、 An error at line 14 causes compilation to fail.
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单选题public class Test { private static int[] x； public static void main（String[] args） { System.out.println（x[0]）； } } What is the result？（）A
0B
nullC
Compilation fails.D
A NullPointerException is thrown at runtime.E
An ArrayIndexOutOfBoundsException is thrown at runtime.
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单选题public class IfTest （ public static void main（string[]args） { int x = 3； int y = 1； if （x = y） system.out.printIn（“Not equal”）； else system.out.printIn（“Equal”）； } ） What is the result？（）A
The output is “Equal”B
The output in “Not Equal”C
An error at line 5 causes compilation to fall.D
The program executes but does not print a message.
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.
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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.
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单选题package test1； public class Test1 { static int x = 42； } package test2； public class Test2 extends test1.Test1 { public static void main（String[] args） { System.out.println（“x = “ + x）； } } What is the result？（）A
x = 0B
x = 42C
Compilation fails because of an error in line 2 of class Test2.D
Compilation fails because of an error in line 3 of class Test1.E
Compilation fails because of an error in line 4 of class Test2.
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单选题public class Foo { public void main（ String[] args ） { System.out.println（ “Hello” + args[0] ）； } } What is the result if this code is executed with the command line？（）A
HelloB
Hello FooC
Hello worldD
Compilation fails.E
The code does not run.
考题
单选题interface DeclareStuff{ public static final int EASY = 3； void doStuff（int t）； } public class TestDeclare implements DeclareStuff { public static void main（String [] args） { int x=5； new TestDeclare（）.doStuff（++x）； } void doStuff（int s） { s += EASY + ++s； System.out.println（”s “ + s）； } } What is the result？（）A
s 14B
s 16C
s 10D
Compilation fails.E
An exception is thrown at runtime.
考题
单选题public class Yippee2 { static public void main（String [] yahoo） { for（int x= 1； xSystem.out.print（yahoo[x] + “ “）； } } } and the command line invocation： java Yippee2 a b c What is the result？（）A
a bB
b cC
a b cD
Compilation fails.E
An exception is thrown at runtime.
考题
单选题public class Yippee2{ stati cpublic void main（String[]yahoo）{ for（intx=1；x
A
abB
bcC
abcD
Compilation fails.E
An exception is thrown at runtime.
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（）； } } The file MyNewVector.java is shown in the exhibit. What is the result？（）A
Compilation will succeed.B
Compilation will fail at line 5.C
Compilation will fail at line 6.D
Compilation will fail at line 14.E
Compilation will fail at line 17.
考题
单选题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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