1、笔试题姓名:_ 本试题答题时间为45分钟1 Given this following code:If you will execute Java Example cat dog sheep, what will be the value of the vary c?/Code begin:class Examplepublic static void main(String args)String a = args1;String b = args2;String c = args3;/Code end.Select all right answer:A. catB. dogC. sheepD
2、. Compliation ErrorE. Exception will occur2 What is the result when you complie and run following code?/Code begin:class Examplepublic static void main(String args)int = 1;int j;j = i+;System.out.println( i + “, “ + j );/Code end.Select all right answer:A. 1, 1B. 1, 2C. 2, 1D. 2, 23 What is the resu
3、lt when you complie and run the following code?/Code begin:public class Examplepublic static void main(String args)int x;switch(x)case 1:System.out.println(“case 1”);case 2:case 3:System.out.println(“case 2”);break;default:System.out.println(“case 3”);/Code end.For what values of x will the output i
4、nclude case 3.Select all right answer:A. 1B. 2C. 3D. 44 What is result when you compile and run the following code?/Code begin:class Basepublic class Example extends Basestatic Boolean b1 = false;static int i = -1;static double d = 10.1;public static void main(String args)Example m = new Example();B
5、ase b = new Base();/Here/Code end.Which of the following, if inserted at the comment /Here will allow the code to compile and run without error?Select all right answer:A. b=mB. m=bC. d=iD. b1=i5 Given the following code:/Code begin:Class AClass BClass SuperClasspublic A getA()return new A();Class Su
6、bClass extends SuperClasspublic B getA()return new B();/Code end.Which statement is true? Select All right answer:A. Compliation will succeed if A extends B.B. Compliation will succeed if B extends A.C. Compliation will always fail because of an error in line13.D. Compliation will always fail becaus
7、e of an error in line14.6 What is the result when you complie and run the following code?/Code begin:public class Examplepublic static void main(String args)tryThread.sleep(200); /line2System.out.println(“Printing from thread run() method”);catch(IOException e)/Code end.Select all right answerA. Com
8、plie time error.B. Prints on the console Printing from thread run() method.C. At line2 the thread will be stop running and resumes after 200 milliseconds and prints Printing from thread run() method.D. At line2 the thread will be stop running and resumes exactly 200 milliseconds elapsed.7 Identify t
9、he implicit objects accessible to a JSP page that can store objects accessible across multiple requests. Select the two correct answers:A. pageB. requestC. sessionD. applicationE. pageContext8 Which statements are correct about listeners? Select the two correct answers:A. When shutting down the appl
10、ication they are called in order inversed of their appearance in the deployment descriptor.B. They are registered in the deployment descriptor by the elements .C. A listener class can implement several listener interfaces.D. Jsp 1.2 introduced the tag handler listener.9 Which of the following elemen
11、ts is required for a valid tag in web.xml? Select the one correct answer:A. B. C. D. E. 10 Name the method defined in the HttpServletResponse class the may be used to set the content type. Do not include parenthesis after the method.11 Given:/Code begin:$5 + 3 lt 6$requestScopefoo0 ne 10 div 0$10 di
12、v 0/Code end.What is the result? Select the one correct answer:A. true trueB. false trueC. false true 0D. true true InfinityE. false true InfinityF. An exception is thrown.G. Compliation or translation fails.12 如下代码：/Code begin: 1-1 /Code end.点击tr行标记时，会触发：A. alert(table)B. alert(tr)C. alert(table), alert(tr)D. alert(tr), alert(table)13 在Oracle中如何得到当前月份的第一天和最后一天?14 表:表:empidnamedeptnosalary1Suns11200002Suns2110000表:deptidname1Suns2Tarena其中emp表中的deptno字段是一外键,指向dept表的id字段.问:如何从dept表中查找在表emp中不存在数据的所有部门的id值.即查询结果为: id - 2 15 用Java实现一个基本的链表类，并实现链表的遍历、插入、和删除操作。
