Java考试资料(考试试卷三).doc

装订线内不要答题，装订线外不要写姓名、学号、学院专业年级班签个人信息，违者试卷作0分处理考 点 号教 室 号姓 名学 院专 业年 级班 号学号（全号）湖南农业大学课程考核试卷课程名称（全称）：Java程序设计（双语） 课程代码：20638B0考核时间：2011 年01月 04 日 试卷号 ： B 考核对象：电子商务081、电子商务082大题号一二三四五六七八九十总分题分202020101020得分 得分I、Choose one correct answer（Total 30 points，each question 3 points）1. Which of the following are Java modifiers? ( )A. public B. true C. friendly D. transient2. Choose the valid identifier from those listed below. ( ) A. MyMethod B. 3byte C. 5_const D.true3. ( ) is a set of primitive instructions built into every computer? A. The machine language B. Assembly language C. The low-level language D. The high-level language 4. What is the return value of the main() method in Java? ( )A. String B. int C. char D. void5. Which is not valid Java keyword? ( )A. const B. NULL C. false D. this6. Which of the following assignments is NOT legal? ( )A.float a = 2.0 B.double b = 2.0 C.int c = 2 D.long d = 27. Which is not a high-level language? ( )A. c language B. BASIC languageC. Visual BASIC language D. Assembly language8. Given the following code:switch (m) case 0: System.out.println(Condition 0); case 1: System.out.println(Condition 1); case 2: System.out.println(Condition 2); case 3: System.out.println(Condition 3);break; default: System.out.println(Other Condition);Which values of m will cause Condition 2 is output? ( )A. 0,1 and 2 B. only 1 C. 3 D. 49. Which modifier is NOT legal in Java? ( )A. private B. public C. protected D. protect10. There are three editions of the Java API except ( )A. J2SE B. J2EE C. J2ME D. J2NE得分II、Decide correct or wrong（Total 20 points，each question 2 points， “”means right, “X” means wrong）1、Java is a kind of Object-oriented programming language.（ ） 2、basic is a high-level language.（ ） 3、A local variable must be declared before it can be used.（）4、The solution of overloading methods is to create another method with the same name but different parameters.（）5、compilation errors occur when a program does not perform the way it was intended to.()6、You can declare a local variable with the same multiple times in different non-nesting blocks in a method.( )7、“=” and “euqals()” are the same.（）8、break immediately ends the innermost loop that contain it.（）9、Letter A and letter a are the same in Java.（）10、You can use the keyword new to create an instance object of a class.( )得分III、Fill the following blanks（Total 20 points，each blank 2 points）1Public class TestMax public static void main(String args) int i=5; int j=2; int k=max(i,j) System.out.println(“The maximum between ” + i + “and “ + j +”is ” + k); public static (int num1, int num2) int result; if (num1 num2) result = ; else result = ; return ; 2switch(m) 0: System.out.println(case 0! ); 1: System.out.println(case 1! ); break;default: System.out.println(default!);（1）when m=0 , the result is： （2）when m=1, the result is： （3）when m3, the result is： _得分IV、Write the results after code is executed.（Total 10 points，each question 5 points）1int i=0; while (i =10) i+;System.out.println(i is + i);The result of question 1 is : 2public class TestpassByValue public static void main ( String args) int num1=1; int num2=2; swap(num1,num2); System.out.println(num1,num2) public static void swap(int n1, int n2) int temp=1;n1=n2;n2=temp;The result of question 2 is : 得分V、answer questions briefly（Total 10 points，each question 5 points）1. Answer the characteristics of Java briefly.2. Answer the rule of evaluating an expression.得分VI、programming（Total 20 points，each question 20 points）1Please write a Java program,compute the GreatestCommmonDivisor.2Please write a Jav