JAVA期末试题及答案

{

System.out.println(\ } }

2、applet程序

public class b extends java.applet.Applet {

public paint(java.awt.Graphics g) {

g.outstring(\ } }

二：

private float shibu; private float xubu; {

this(0,0); }

this.shibu=shibu; this.xubu=xubu; } {

ex();

result.shibu=this.shibu+p.shibu; result.xubu=this.xubu+p.xubu;

System.out.print(\加法果为:\}

public static void main(String[] args) {

fushu1.Add(fushu2); } } 三：

import java.lang.*; public class COMplex { int RealPart; int ImagePart; COMplex(){ RealPart=0; ImagePart=0; }

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COMplex(int real,int image){ RealPart=real; ImagePart=image; }

COMplex repart = new COMplex();

repart.RealPart=this.RealPart+a.RealPart; repart.ImagePart=this.ImagePart+a.ImagePart; return repart; }

void ToString( ) {

System.out.println(this.RealPart+\ }

public static void main(String args[]){ COMplex C1=new COMplex(2,3); COMplex C2=new COMplex(4,6); COMplex C3=new COMplex();

// C3.ToString(); } }

四：

import java.util.Scanner;

public class Test {

public static void main(String args[]){

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int num[]=new int[10]; int max;

Scanner scan=new Scanner(System.in); System.out.print(\请输入10个数字:\ for(int i=0; i<10; i++){ num[i]=scan.nextInt(); }

max=num[0];

for(int i=1; i<10; i++){ if(max

System.out.println(\最大值是\ } 五：

//学生类

public class Student{ private String stu_id; private String stu_name; private float math; private float chinese;

public void setStu_id(String stu_id){ this.stu_id=stu_id; }

public String getStu_id(){ return stu_id; }

public void setStu_name(String stu_name){ this.stu_name=stu_name; }

public String getStu_name(){ return stu_name; }

public void setMath(float math){ this.math=math; }

public float getMath(){ return math; }

public void setChinese(float chinese){ this.chinese=chinese; }

public float getChinese(){ return chinese; } }

public } }

//主方法的类

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public class Start{

public static void main(String[] args){ Student stu1=new Student(); stu1.setStu_id(\ stu1.setStu_name(\张三\ stu1.setMath(89.5f); stu1.setChinese(70f); stu1.s

Student stu2=new Student(); stu2.setStu_id(\ stu2.setStu_name(\李四\ stu2.setMath(79.5f); stu2.setChinese(90f);

float stu2Sum

if(stu1Sum > stu2Sum){

System.out.println (\总分最高分为：\ System.out.println (\学号：\ System.out.println (\姓名：\ System.out.println (\数学：\ System.out.println (\语文：\

}else if(stu1Sum < stu2Sum){

System.out.println (\总分最高分为：\ System.out.println (\学号：\ System.out.println (\姓名：\ System.out.println (\数学：\ System.out.println (\语文：\

}else{

System.out.println (\总分一样高为：\ System.out.println (\学号：\ System.out.println (\姓名：\ System.out.println (\数学：\ System.out.println (\语文：\

System.out.println (\学号：\ System.out.println (\姓名：\ System.out.println (\数学：\ System.out.println (\语文：\ } } } 九：

import java.util.Scanner; public class COMPare {

public static void main(String args []){ Scanner tr=new Scanner(System.in); int b=tr.nextInt(); int a=tr.nextInt();

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if(a==b)

System.out.println(\相等\ else

System.out.println(\不相等\ } }

十一:

class Average {

public static void main(String args[]) { String array[] = new String[3]; array[0] = \array[1] = \array[2] = \

int total = array[0].length(); total += array[1].length(); total += array[2].length();

System.out.println(\平均字符串长度为： \} }

JAVA复习卷

一、选择题(2’*15=30’)

1、如下哪个是Java中的标识符( )

A、fieldname B、super

C、3number

D、#number

2、设 x = 1 , y = 2 , z = 3，则表达式 y＋＝z－－/＋＋x 的值是( )。 A. 3 B. 3. 5 C. 4 D. 5 3、下面的代码段执行之后count的值是什么( ) int count = 1; for (int i = 1; i <= 5; i++) { count += i; }

System.out.println(count); A、5

B、1

C、15

D、16

4、为AB类的一个无形式参数无返回值的方法method书写方法头，使得使用类名AB作为前缀就可以调用它，该方法头的

形式为( )。

A. static void method( ) B. public void method( ) C. final void method( ) D. abstract void method( ) 5、下列程序段执行后的结果是( )。

String s = new String(\for (int i=0; i

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