热门试题
Given the element from the web application deployment descriptor： /main/page1.jsp true and given that /main/page1.jsp contains： What is the result？（）
Given a portion of a valid Java EE web application’s directory structure：MyApp | |--Directory1 ||--File1.html| |--META-INF| |--File2.html| |--WEB-INF |--File3.html You want to know whether File1.html， File2.html，and/or File3.html is protected from direct access by yourweb client’s browsers. What statement is true？（）
如果想要一个类不能被任何类继承的话，需要使用哪个关键字来修饰该类？（）
1.public class Test { 2.public static void main （String args[]） { 3.class Foo { 4.public int i = 3； 5.} 6.Object o = （Object） new Foo（）； 7.Foo foo = （Foo）o； 8.System.out.printIn（foo. i）； 9. } 10.} What is the result？（）
A web application contains a tag file called beta.tag in /WEB-INF/tags/alpha. A JSP page called sort.jspexists in the web application and contains only this JSP code： 1. 3. The sort.jsp page is requested. Which two are true？（）
10. class Line { 11. public static class Point { } 12. } 13. 14. class Triangle { 15. // insert code here 16. } Which code， inserted at line 15， creates an instance of the Point class defined in Line？（）
如何设定包访问级的成员函数或成员变量（）
After a merger with another small business， your company has inherited a legacy WAR file but the originalsource files were lost. After reading the documentation of that web application，you discover that the WARfile contains a useful tag library that you want to reuse in your own webapp packaged as a WAR file. What do you need to do to reuse this tag library？（）
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？（）
for循环的一般形式为： for（初值；终值；增量） 一下对for循环的描述中，正确的是（）
