three
other
An exception is thrown at runtime.
Compilation fails because of an error on line 12.
Compilation fails because of an error on line 13.
Compilation fails because of an error on line 15.
第1题:
11.publicstaticvoidmain(String[]args){12.Integeri=uewInteger(1)+newInteger(2);13.switch(i){14.case3:System.out.println(”three”);break;15.default:System.out.println(”other”);break;16.}17.}Whatistheresult?()
A.three
B.other
C.Anexceptionisthrownatruntime.
D.Compilationfailsbecauseofanerroronline12.
E.Compilationfailsbecauseofanerroronline13.
F.Compilationfailsbecauseofanerroronline15.
第2题:
给出下面代码片段: public class Test{ public static void main (String args[ ]){ int m; switch(m) { case 0:System.out.println("case 0"); case 1:System.out.println("case 1"):break; case 2: default:System.out.println("default"); } } } 下列m的( )值将引起"default"的输出。
A.1
B.2
C.4
D.0
第3题:
给出下面代码段: public class Test{ public static void main(String args[] ) { int m; switch(m) { case 0: System.out.println("case 0"); case 1: System.out.println("case 1"); break; case 2: break; default: System.out.println("default"); } } } 下列m的值能引起输出“default”的是( )。
A.0
B.1
C.2
D.4
第4题:
11. public static void main(String[] args) { 12. Integer i = uew Integer(1) + new Integer(2); 13. switch(i) { 14. case 3: System.out.println(”three”); break; 15. default: System.out.println(”other”); break; 16. } 17. } What is the result?()
第5题:
11. static class A { 12. void process() throws Exception { throw new Exception(); } 13. } 14. static class B extends A { 15. void process() { System.out.println(”B”); } 16. } 17. public static void main(String[] args) { 18. new B().process(); 19. } What is the result?()
第6题:
public static void main(String[]args){ Integer i=new Integer(1)+new Integer(2); switch(i){ case3:System.out.println("three");break; default:System.out.println("other");break; } } Whatistheresult?()
第7题:
10. public class MyClass { 11. 12. public Integer startingI; 13. public void methodA() { 14. Integer i = new Integer(25); 15. startingI = i; 16. methodB(i); 17. } 18. private void methodB(Integer i2) { 19. i2 = i2.intValue(); 20. 21. } 22. } If methodA is invoked, which two are true at line 20?()
第8题:
Given: 11. static class A { 12. void process() throws Exception { throw new Exception(); } 13. } 14. static class B extends A { 15. void process() { System.out.println("B "); } 16. } 17. public static void main(String[] args) { 18. A a = new B(); 19. a.process(); 20. } What is the result? ()
第9题:
three
other
Anexceptionisthrownatruntime.
Compilationfailsbecauseofanerroronline12.
Compilationfailsbecauseofanerroronline13.
Compilationfailsbecauseofanerroronline15.
第10题:
three
other
An exception is thrown at runtime.
Compilation fails because of an error on line 12.
Compilation fails because of an error on line 13.
Compilation fails because of an error on line 15.
第11题:
It is true that j==i.
It is false that j==i.
An exception is thrown at runtime.
Compilation fails because of an error in line 13.
第12题:
Compilation will fail.
The program prints “0”.
The program prints “3”.
Compilation will succeed but an exception will be thrown at line 3.
第13题:
下面程序的输出结果是( )。 public class Sun { public static void main(String args[ ]) { int i = 1; switch (i) { case 0: System.but.println("zero"); break; case 1: System.out.println("one"); case 2: System.out.println("two"); default: System.out.println ("default"); } } }
A.one
B.one, default
C.one, two, default
D.default
第14题:
下面程序段的输出结果是( )。 public class Test{ public static void main(String args[]){ int i=1: switch(i){ case0: System.OUt.println("0"); break; casel: System.out.println("1"); case2: System.OUt.println("2"); break; default: System.out.println("default"); } } }
A.01
B.12
C.10
D.21
第15题:
public class Test { public static void add3 (Integer i) { int val = i.intValue(); val += 3; i = new Integer(val); } public static void main(String args[]) { Integer i = new Integer(0); add3(i); System.out.println(i.intValue()); } } What is the result? ()
第16题:
11. public static void main(String[] args) { 12. Object obj = new Object() { 13. public int hashCode() { 14. returns 42; 15. } 16. }; 17. System.out.println(obj.hashCode()); 18. } What is the result? ()
第17题:
11. class Converter { 12. public static void main(String[] args) { 13. Integer i = args[0]; 14. int j = 12; 15. System.out.println(”It is “ + (j==i) + “that j==i.”); 16. } 17. } What is the result when the programmer attempts to compile the code and run it with the command java Converter 12?()
第18题:
public class test { public static void add3 (Integer i){ int val = i.intValue ( ); val += 3; i = new Integer (val); } public static void main (String args [ ] ) { Integer i = new Integer (0); add3 (i); system.out.printIn (i.intValue ( ) ); } } What is the result?()
第19题:
11. public static void append(List list) { list.add(”0042”); } 12. public static void main(String[] args) { 13. List
第20题:
42
0042
An exception is thrown at runtime.
Compilation fails because of an error in line 13.
Compilation fails because of an error in line 14.
第21题:
42
An exception is thrown at runtime.
Compilation fails because of an error on line 12.
Compilation fails because of an error on line 16.
Compilation fails because of an error on line 17.
第22题:
B
The code runs with no output.
Compilation fails because of an error in line 12.
Compilation fails because of an error in line 15.
Compilation fails because of an error in line 18.
第23题:
0
3
Compilation fails.
An exception is thrown at runtime.
第24题:
i2 == startingI returns true.
i2 == startingI returns false.
i2.equals(startingI) returns true.
i2.equals(startingI) returns false.