java经典编程题二及详细答案(4)

public int compare(int guess, int random){ if(guess==random){

System.out.println(\恭喜你，你猜对了\

System.out.println(\你猜对了. 你的得分是：\ return EQUALS; }else if(guess

System.out.println(\你已经猜了\次了，你的数小了\ return LITTLE_THAN; }else{ count ;

System.out.println(\你已经猜了\次了，你的数大了\ return GREATER_THAN; } }

public static void main(String[] args){ GuessNum gn = new GuessNum();

Scanner scan = new Scanner(System.in); int num = gn.generateNum(); int guess; do{

System.out.println(\请输入一个10到99之间的数字\ guess = scan.nextInt(); }

while(gn.compare(guess, num)!=GuessNum.EQUALS); } }

结果截图：

2）程序如下： import java.util.*; public class count {

public static void main(String[] args) {

int count = 0;

List list = new ArrayList(); int i = 1; while(i <= 100) {

int temp = 0;

for(int j = 1; j <= i; j ) {

if(i %j == 0) { temp ;} }

if(count < temp) {

list.clear();

list.add(new Integer(i)); count = temp; }

else if(count== temp) {list.add(new Integer(i));} i ; }

for(int value: list)

{System.out.println(\除数最多的数是: \除数个数为 :\ } }

结果截图：

3）程序如下： import java.io.*; import java.util.*; public class huochai {

public static void main(String args[]) {

System.out.print(\请按enter键开始游戏 \ byte[] buf2=new byte[20]; String strTemp3=\ try

{ System.in.read(buf2); } catch(IOException e){} strTemp3=new String(buf2);

int a=(strTemp3.trim().compareTo(\ int b=(strTemp3.trim().compareTo(\ int amount=0;

amount=(int)(Math.random()*31 20); if(a==0||b==0)

System.out.print(\火柴数\ System.out.println();

System.out.print(\谁先拿1--人，2--计算机(1或2)？\

byte[] whoplay=new byte[20]; String strTemp2=\ try {

System.in.read(whoplay); }

catch(IOException e) {} strTemp2=new String(whoplay);

int c=(strTemp2.trim().compareTo(\ int d=(strTemp2.trim().compareTo(\ int remain=amount; while(remain>=0) {

if(c==0) {

System.out.print(\人拿火柴\ double x=0; BufferedReader InputStreamReader(System.in)); try {

String s= br.readLine(); x=Double.parseDouble(s); }

catch(IOException e) { } if(x>=1&&x<=3) {

remain-=(int)x;

System.out.println(\剩余火柴数：\ if(remain==0)

{ System.out.print(\人赢！！\ if(remain<=3&&remain>0) {

System.out.print(\计算机拿\ System.out.println(\计算机赢！！\

br=new

BufferedReader(new

} } else

{ System.out.println(\最多只能拿三根！\ continue; }

System.out.print(\计算机拿\ int y=0;

y=(int)(Math.random()*3 1); System.out.println(\ remain-=y;

System.out.println(\剩余火柴数：\ if(remain==0)

{ System.out.print(\人赢！！\ }

if(d==0) {

System.out.print(\计算机拿\ int y=0;

y=(int)(Math.random()*3 1); remain-=y;

System.out.println(\

System.out.println(\剩余火柴数：\ if(remain==0)

{ System.out.print(\计算机赢！！\ break; }

/* while(remain>=0)

{ System.out.print(\人拿火柴\ double x=0; BufferedReader InputStreamReader(System.in)); try {

String s= br.readLine();

br=new

BufferedReader(new