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1、凌志软件 中级软件工程师选择题 1: if (a = true) What will be the result of executing the following code? boolean a = true; boolean b = false; boolean c = true; if (a = true) if (b = true) if (c = true) System.out.println(Some things are true in this world); else System.out.println(Nothing is true in this world!);
2、else if (a else System.out.println(Hey this wont compile); Choices: What will be the result of executing the following code? boolean a = true;boolean b = false;boolean c = true;if (b = true)if (c = true) System.out.println(Some things are true in this world);else System.out.println(Nothing is true i
3、n this world!);else if (a & (b = c) System.out.println(Its too confusing to tell what is true and what is false);else System.out.println(Hey this wont compile); Choices:A.The code wont compile B.Some things are true in this world will be printed C.Hey this wont compile will be printed D.None of thes
4、e 2:使用 JDBC 可以做到的是 A.把二进制代码传送到任何关系数据库中 B.把 Java 源代码传送到任何关系数据库中 C.把表单信息传送到任何关系数据库中 D.很容易地把 SQL 语句传送到任何关系数据库中 3: The following code is entire contents of a file called Example.java,causes precisely one error during compilation: class SubClass extends BaseClass class BaseClass() String str; public Base
5、Class() System.out.println(“ok”); public BaseClass(String s) str=s; public class Example public void method() SubClass s=new SubClass(“hello”); BaseClass b=new BaseClass(“world”); Which line would be cause the error? The following code is entire contents of a file called Example.java,causes precisel
6、y one error during compilation:class SubClass extends BaseClassclass BaseClass()String str;public BaseClass()System.out.println(“ok”);public BaseClass(String s)str=s;public class Examplepublic void method()SubClass s=new SubClass(“hello”);BaseClass b=new BaseClass(“world”);Which line would be cause
7、the error? A.9 B.10 C.11 D.12 4:软件生命周期的瀑布模型把软件项目分为 3 个阶段、8 个子阶段，以下哪一个是正常的开发顺序? A.计划阶段、开发阶段、运行阶段 B.设计阶段、开发阶段、编码阶段 C.设计阶段、编码阶段、维护阶段 D.计划阶段、编码阶段、测试阶段 5: What will be the result of executing the following code? public static void main(String args) char digit = a; for (int i = 0; i = 0 : methodB(); Syste
8、m.out.println(i); public void methodB() System.out.println(The value must not be negative); public static void main(String args) AssertTest test = new AssertTest(); test.methodA(-10); What will happen when you attempt to compile and run the following code?(Assume that the code is compiled and run wi
9、th assertions enabled.)public class AssertTestpublic void methodA(int i)assert i = 0 : methodB();System.out.println(i);public void methodB() System.out.println(The value must not be negative);public static void main(String args)AssertTest test = new AssertTest();test.methodA(-10); A.it will print -1
10、0 B.it will result in AssertionError showing the message-“the value must not be negative”. C.the code will not compile. D.None of these. 16:以下的 C 程序代码片段运行后 C 和 d 的值分别是多少 Int a =1,b =2; Int c,d; c =(a d =(a A.0,0 B.0,1 C.1,0 D.1,1 17:Which method you define as the starting point of new thread in a cl
11、ass from which new the thread can be excution? A.public void start() B.public void run() C.public void runnable() D.public static void main(String args) 简答题 18:Java 中的异常处理机制的简单原理和应用。 19:Static Inner Class 和 Inner Class 的不同，说得越多越好。 20:正向最大匹配分词，怎么做最快？ 21:数组 aN，存放了 1 至 N-1 个数，其中某个数重复一次。写一个函数，找出被重复的数字.时间复杂度必须为 o（N）函数原型： int do_dup(int a,int N) 22:多线程中的同步机制是什么，有什么优缺点？ 23:Web.xml 的作用? 24:找到一个子字符串，优化速度，优化空间。 25:说出 ArrayList,Vector, LinkedList 的存储性能和特性。
