单选题} 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 14 causes compilation to fail.
单选题} 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 14 causes compilation to fail.
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1. class A { 2. public int getNumber（int a） { 3. return a + 1； 4. } 5. } 6. 7. class B extends A { 8. public int getNumber （int a） { 9. return a + 2 10. } 11. 12. public static void main （String args[]） { 13. A a = new B（）； 14. System.out.printIn（a.getNumber（0））； 15. } 16. } 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.
class A { public String toString （） { return “4”； } } class B extends A { 8. public String toString （） { return super.toString（） + “3”； } } public class Test { public static void main（Stringargs） { System.out.printIn（new B（））； } } What is the result？（） A、 Compilation succeeds and 4 is printed.B、 Compilation succeeds and 43 is printed.C、 An error on line 9 causes compilation to fail.D、 An error on line 14 causes compilation to fail.E、 Compilation succeeds but an exception is thrown at line 9.
1. class A { 2. public byte getNumber （） { 3. return 1； 4. } 5. } 6. 7. class B extends A { 8. public short getNumber（） { 9. return 2； 10. } 11. 12. public static void main （String args[]） { 13. B b = new B （）； 14. System.out.printIn（b.getNumber（）） 15. } 16. } 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 14 causes compilation to fail.E、 Compilation succeeds but an exception is thrown at line 14.
abstract class abstrctIt { abstract float getFloat （）； } public class AbstractTest extends AbstractIt { private float f1= 1.0f； private float getFloat （） {return f1；} } What is the result？ （）A、 Compilation is successful.B、 An error on line 6 causes a runtime failure.C、 An error at line 6 causes compilation to fail.D、 An error at line 2 causes compilation to fail.
class A { public byte getNumber （） { return 1； } } class B extends A { public short getNumber（） { return 2； } public static void main （String args） { B b = new B （）； System.out.printIn（b.getNumber（）） } } 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 14 causes compilation to fail.E、 Compilation succeeds but an exception is thrown at line 14.
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.
1. class A { 2. public String toString （） { 3. return “4”； 4. } 5. } 6. class B extends A { 7. public String toString （） { 8. return super.toString（） + “3”； 9. } 10. } 11. public class Test { 12. public static void main（String[]args） { 13. System.out.printIn（new B（））； 14. } 15. } What is the result？（） A、 Compilation succeeds and 4 is printed.B、 Compilation succeeds and 43 is printed.C、 An error on line 9 causes compilation to fail.D、 An error on line 14 causes compilation to fail.E、 Compilation succeeds but an exception is thrown at line 9.
1. interface foo { 2. int k = 0； 3. } 4. 5. public class test implements Foo （ 6. public static void main（String args[]） （ 7. int i； 8. Test test = new test （）； 9. i= test.k； 10.i= Test.k； 11.i= Foo.k； 12.） 13.） 14. What is the result？（） A、 Compilation succeeds.B、 An error at line 2 causes compilation to fail.C、 An error at line 9 causes compilation to fail.D、 An error at line 10 causes compilation to fail.E、 An error at line 11 causes compilation to fail.
1. class A { 3. public String to String（） { 4. return “4”； 5. } 6. } 7. class B extends A { 8. public String toString（） { 9. return super.toString（） + “3”； 10. } 11. } 12. public class Test { 13. public static void main （String[] args） { 14. System.out.printIn（new B（））； 15. } 16. } What is the result（ ）？ A、 Compilation succeeds and 4 is printed.B、 Compilation …………… is printed.C、 An error on line 9 cause compilation to fail.D、 An error on line 14 cause compilation to fail.E、 Compilation succeeds but an exception is thrown at line 9.
1. class A { 2. public byte file Number （ ） { 3. return l; 4. } 5. } 6. 7. Class B extends A { 8. public short getNumber（ ） { 9. return 2; 10. } 11. 12. public short getNumber（ ） { 13. B b = new B（ ）; 14. System.out.printIn(b.getNumber（ ）); 15. } 16. } What is the result（）? A、 Compilation succeeds and l is printed.B、 Compilation succeeds and 2 printed.C、 An error at line 8 cause compilation to fail.D、 An error at line 14 cause complication to fail.E、 Complication succeeds but an exception is thrown at line 14.
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.
interface foo { int k = 0； } public class test implements Foo （ public static void main（String args） （ int i； Test test = new test （）； i= test.k； i= Test.k； i= Foo.k； ） ） What is the result？ （）A、 Compilation succeeds.B、 An error at line 2 causes compilation to fail.C、 An error at line 9 causes compilation to fail.D、 An error at line 10 causes compilation to fail.E、 An error at line 11 causes compilation to fail.
单选题interface foo { int k = 0； } public class test implements Foo （ public static void main（String args） （ int i； Test test = new test （）； i= test.k； i= Test.k； i= Foo.k； ） ） What is the result？ （）A Compilation succeeds.B An error at line 2 causes compilation to fail.C An error at line 9 causes compilation to fail.D An error at line 10 causes compilation to fail.E An error at line 11 causes compilation to fail.
单选题Given： What is the result？（）A Compilation succeeds.B Compilation fails due to multiple errors.C Compilation fails due to an error only on line 20.D Compilation fails due to an error only on line 21.E Compilation fails due to an error only on line 22.
单选题abstract class abstrctIt { abstract float getFloat （）； } public class AbstractTest extends AbstractIt { private float f1= 1.0f； private float getFloat （） {return f1；} } What is the result？（）A Compilation is successful.B An error on line 6 causes a runtime failure.C An error at line 6 causes compilation to fail.D An error at line 2 causes compilation to fail.
单选题1. class A { 2. public String toString （） { 3. return “4”； 4. } 5. } 6. class B extends A { 7. public String toString （） { 8. return super.toString（） + “3”； 9. } 10. } 11. public class Test { 12. public static void main（String[]args） { 13. System.out.printIn（new B（））； 14. } 15. } What is the result？（）A Compilation succeeds and 4 is printed.B Compilation succeeds and 43 is printed.C An error on line 9 causes compilation to fail.D An error on line 14 causes compilation to fail.E Compilation succeeds but an exception is thrown at line 9.
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.
单选题1. class A { 2. public byte getNumber （） { 3. return 1； 4. } 5. } 6. 7. class B extends A { 8. public short getNumber（） { 9. return 2； 10. } 11. 12. public static void main （String args[]） { 13. B b = new B （）； 14. System.out.printIn（b.getNumber（）） 15. } 16. } 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 14 causes compilation to fail.E Compilation succeeds but an exception is thrown at line 14.
单选题class A { public byte getNumber （） { return 1； } } class B extends A { public short getNumber（） { return 2； } public static void main （String args） { B b = new B （）； System.out.printIn（b.getNumber（）） } } 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 14 causes compilation to fail.E Compilation succeeds but an exception is thrown at line 14.
单选题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.
单选题1. class A { 2. public byte file Number （ ） { 3. return l; 4. } 5. } 6. 7. Class B extends A { 8. public short getNumber（ ） { 9. return 2; 10. } 11. 12. public short getNumber（ ） { 13. B b = new B（ ）; 14. System.out.printIn(b.getNumber（ ）); 15. } 16. } What is the result（）?A Compilation succeeds and l is printed.B Compilation succeeds and 2 printed.C An error at line 8 cause compilation to fail.D An error at line 14 cause complication to fail.E Complication succeeds but an exception is thrown at line 14.
单选题What is the result？（）A Compilation succeeds.B Compilation fails due to multiple errors.C Compilation fails due to an error only on line 20.D Compilation fails due to an error only on line 21.E Compilation fails due to an error only on line 22.F Compilation fails due to an error only on line 12.
单选题} 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 14 causes compilation to fail.
单选题1. class A { 3. public String to String（） { 4. return “4”； 5. } 6. } 7. class B extends A { 8. public String toString（） { 9. return super.toString（） + “3”； 10. } 11. } 12. public class Test { 13. public static void main （String[] args） { 14. System.out.printIn（new B（））； 15. } 16. } What is the result（ ）？A Compilation succeeds and 4 is printed.B Compilation …………… is printed.C An error on line 9 cause compilation to fail.D An error on line 14 cause compilation to fail.E Compilation succeeds but an exception is thrown at line 9.
单选题What is the result？（）A Compilation succeeds and 1 is printed.B complication succeeds and 2 is printed.C An error at line 8 causes compilation to fail.D An error at line 13 causes complication to fail.E An error at line 14 causes compilation to fail.
单选题1. class A { 2. public int getNumber（int a） { 3. return a + 1； 4. } 5. } 6. 7. class B extends A { 8. public int getNumber （int a） { 9. return a + 2 10. } 11. 12. public static void main （String args[]） { 13. A a = new B（）； 14. System.out.printIn（a.getNumber（0））； 15. } 16. } 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.
单选题class A { public String toString （） { return “4”； } } class B extends A { 8. public String toString （） { return super.toString（） + “3”； } } public class Test { public static void main（Stringargs） { System.out.printIn（new B（））； } } What is the result？（）A Compilation succeeds and 4 is printed.B Compilation succeeds and 43 is printed.C An error on line 9 causes compilation to fail.D An error on line 14 causes compilation to fail.E Compilation succeeds but an exception is thrown at line 9.
单选题1. interface foo { 2. int k = 0； 3. } 4. 5. public class test implements Foo （ 6. public static void main（String args[]） （ 7. int i； 8. Test test = new test （）； 9. i= test.k； 10.i= Test.k； 11.i= Foo.k； 12.） 13.） 14. What is the result？（）A Compilation succeeds.B An error at line 2 causes compilation to fail.C An error at line 9 causes compilation to fail.D An error at line 10 causes compilation to fail.E An error at line 11 causes compilation to fail.