JAVA系统分析笔试题

JAVA系统分析笔试题,标签：德勤笔试经验,银行笔试经验,http://www.qz26.com

　　Choices:

　　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!");

　　else if (a && (b = c)) System.out.println("It's too confusing to tell what is true and what is false");

　　else System.out.println("Hey this won't compile");

　　Choices:

　　A.The code won't compile

　　B."Some things are true in this world" will be printed

　　C."Hey this won't compile" will be printed

　　D.None of these

　　5:Give the following java source fragement:

　　//point x

　　public class Interesting{

　　//do something

　　}

　　Which statement is correctly Java syntax at point x?

　　Give the following java source fragement:

　　//point x

　　public class Interesting{

　　//do something

　　}

　　Which statement is correctly Java syntax at point x?

　　A.public class MyClass{//do other thing…}

　　B.static int PI=3.14

　　C.class MyClass{//do something…}

　　D.none

　　6:public class Parent {

　　int change() {…}

　　}

　　class Child extends Parent {

　　}

　　Which methods can be added into class Child?

　　A.public int change(){}

　　B.abstract int chang(){}

　　C.private int change(){}

　　D.none

　　7:给出下面的代码片断。。。下面的哪些陈述为错误的?

　　1) public void create() {

　　2) Vector myVect;

　　3) myVect = new Vector();

　　4) }

　　给出下面的代码片断。。。下面的哪些陈述为错误的?

　　1) public void create() {

　　2) Vector myVect;

　　3) myVect = new Vector();

　　4) }

　　A.第二行的声明不会为变量myVect分配内存空间。

　　B.第二行语句创建一个Vector类对象。

　　C.第三行语句创建一个Vector类对象。

　　D.第三行语句为一个Vector类对象分配内存空间

　　8:What is written to the standard output given the following statement:System.out.println(4|7);

　　Select the right answer:

　　A.4

　　B.5

　　C.6

　　D.7

　　9:Which fragments are not correct in Java source file?

　　A.package testpackage; public class Test{//do something...}

　　B.import java.io.*; package testpackage; public class Test{// do something...}

　　C.import java.io.*; class Person{// do something...} public class Test{// do something...}

　　D.import java.io.*; import java.awt.*; public class Test{// do something...}

　　10:Give the following java class:

　　public class Example{

　　static int x[]=new int[15];

　　public static void main(String args[]){

　　System.out.println(x[5]);

　　}

　　}

　　Which statement is corrected?

　　Give the following java class:

　　public class Example{

　　static int x[]=new int[15];

　　public static void main(String args[]){

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