JAVA基础实验编程

1、Java实验报告实验日期：2011年10月17日实验机房与机号： 实验班级： 组员姓名学号：指导教师：刘寿强第三单兀实验目的：掌握陈述面向对象的思想，通过创建类的实力来体现实验内容：第三单元；实验步骤：3-2class DogString color;int weight;public Dog(String color,int weight)this.color=color;this.weight=weight;public void showd()class CatString color;int weight;public Cat(String color,int weight) this

2、.color=color; this.weight=weight;public void showc()public class Apublic static void main(String args)Dog d1= new Dog("黄色",100);Cat c1= new Cat(" 白色",200); d1.showd();c1.showc();3-3class CarString ping;double price;String date;public Car(String ping,double price,String date) this

3、.ping=ping; this.price=price; this.date=date;public void show()public void qd() public void sc()public void js()public class Apublic static void main(String args)Car car=new Car(" 奇瑞",3000," 保修终生！");car.show(); car.js();凹 D:XPROGRA*!JCKEATlGE20ttl. exe终逾韋车.价格为? 车正在抑速?ress an V ke

4、y toc o n t in it匕l_0 0 03-4public class ConsoleParamspublic static void main(String args) if (args .l ength<2)return;int a=lnteger.parselnt(argsO);int b=lnteger.parselnt(args1); int c;c=a+b;public class ExampleDpublic static void main(String args) int num=20;if(num>20)else3-6class SExam stati

5、c int num=0;public SExam()num+;public class StaticExampublic static void main(String args)SExam se1=new SExam();SExam se2=new SExam();SExam se3=new SExam();第四单元目的：掌握格式化转换异常，实验内容：第四单元 步骤如下：public class NumberFormatExcepti on Text /* param args*/public static void main( Stri ng args) /TODOAuto-ge nera

6、ted method stubint iArray=0,0;tryiArray0 =ln teger.parse Int (args0);iArray1=Integer.parseInt (args1); catch (ArraylndexOutOfBoundsExcepti on e)System. out .println( "用户输入的数据不完整，程序使用默认值代替:"); catch (NumberFormatException e)System. out .println("用户输入的不全是数值型的数据，程序使用默认值替代:");System.

7、 out .println(iArray0+ yi);氐 rk-obl«inx I 删 Javidoe 曉"+" +iArray1+"="+(iArray0+iArraLl«cliar ati on 昱 Uoziso旨 匸£UwnbrForm =atEc1 eptiofiTestt Jiva Applicft+idn C : "kFrogt- wti Filas'1- 用户输入的數据不完整，程序便用默认值代替：0+0=0public classArithmeticExcepti on Text /* par

8、am args*/public static void main( Str in g args) /TODO Auto-ge nerated method stubtryint a=args. len gthint b=42/a;catch (ArithmeticExcepti on e) System. out .println("除数不能够为零啊！")；<ternrii n-atedL.> Ar 1 ttme ti cExcept 1 onT ex七 Ja#宜 Appli catz on C： Troigr sin File除数不能够为零啊！importpu

9、blic classNegative In dexExcepti on Demo public int getNumberOfRa ndoml ndex(int iArray) throwsNegative In dexExcepti onRan dom ran dom=new Ran dom();int in dex=ra ndom.n extI nt();if (index<0)newthrowNegative In dexExcepti on(this .getClass().getName()+".getNumberOfRa ndoml ndex(i nt)方法不能够处

10、理自己所抛岀的异常：索引值"+index+ "产岀异常“)；in dex=in dex%iArray.len gth ;return iArrayi ndex;public static voidmain( Str in g args) int iArray=0,1,3,4,5,6,7,8,9;int ran domNumber=0;try ran domNumber= newNegativeI ndexExceptio nDemo().getNumberOfRa ndoml ndex(iArray); catch (NegativeIndexException e)Sys

11、tem. out .println(e+"nmian方法有能力处理该异常 t");randomNumber=Math. round ( float )(Math.random ()*10);System. out .println( "产生随机结果为"+randomNumber);public classNegativeindexException extendsExceptionpublicNegative In dexExcepti on() super ()；publicNegative In dexExcepti on( Stri ng mess

12、age)super (message);第五单元一、实验目的：熟悉掌握输入输出流二、实验内容：第五单元三、实验步骤练习5-1校验用户密码格式(1) 程序代码public class CheckPWpublic static void main( Str in g args)Scanner sca nner=new Sca nn er(System.i n);String inputString=scanner.nextLine();String regular="Aa-zA-Z$_a-zA-Z$_0-97,19"if(i nputStri ng.matches(regula

13、r)else(2) 运行结果图5-1练习5-2转换中文格式日期(1) 程序代码public class Chin eseDatepublic static void main(String args)Date date=new Date(10,9,2011);String dateFormatStr="北京时间:ntH:mm:ssntEntyyyy-M-dd" SimpleDateFormat simpleFormat=new SimpleDateFormat(dateFormatStr);(2) 运行结果图5-2练习5-3万年历(3) 程序代码public class C

14、ale ndarAutopublic static void main( Stri ng args)Scanner sea nner=new Sca nn er(System.i n);int params=new in t2;for(i nt i=0;i<2&&sca nn er.hasNextl nt();i+)paramsi=sca nner.n extI nt(); if(params1>12)params1=params1%13;if(params1<0)params1=12+params1%13;Cale ndar cale ndar=Cale n

15、dar.getl nsta nce();cale ndar.set(params0,params1-1,1);int first In dex=cale ndar.get(Cale ndar.DAY_OF_WEEK)-1; char title='日','一','二','三','四','五','六'int daysArray=new int6 7;int day=1;for(i nt i=first In dex;i<7;i+)daysArray0i=day+;for(i nt i=1;i<6;i+)for(i nt j=0;j<7;j+)if(day>daysOfM on th(params0,params1)i=6;break;daysArrayij=day+;for(i nt i=0;i<7;i+)for(i nt i=0;i<6;i+)for(i nt j=0;j<7;j+)private static int daysOfM on th(i nt year,i nt mon th)switch(mo nth)case 1