JAVA流程控制語句_百度文庫

1、實驗二 Java流程控制語句一、實驗時間和地點時間：2010年10月18日地點：電信北樓320判斷某年是否為閏年二、實驗內容1、判斷某年月是否為閏年；2、判斷某年月有多少天；3、有ifelse結構對五個數排序；4、求1001000內的所有非素數。三、實驗步驟、源程序及實驗結果1、判斷某年月是否為閏年源程序：import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;public class LeapYear public static void main(String arg

2、s throws NumberFormatException, IOException int year;InputStreamReader reader=new InputStreamReader(System.in;BufferedReader input=new BufferedReader(reader;System.out.println("請輸入年份："year=Integer.parseInt(input.readLine(;if(year%4=0&&(year%100=0|(year%400=0System.out.println("

3、;是閏年！"elseSystem.out.println("不是閏年！"運行結果：2、判斷某年月有多少天源程序：import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;public class MonthDays int year;public void setyear(int yearthis.year=year;public boolean boolyear(boolean b=true;if(year%4=0&&(yea

4、r%100=0|(year%400=0b=true;elseb=false;return b; public static void main(String args throws NumberFormatException, IOException MonthDays md=new MonthDays(;int year,month,days;InputStreamReader reader=new InputStreamReader(System.in;BufferedReader input=new BufferedReader(reader;System.out.println(&qu

5、ot;請輸入年份："year=Integer.parseInt(input.readLine(;System.out.println("請輸入月份："month=Integer.parseInt(input.readLine(;md.setyear(year;boolean b=md.boolyear(; switch(monthcase 1:case 3:case 5:case 7:case 8:case 10:case 12:days=31;System.out.println("本月是"+days+"天"System.

6、out.println("本年是365天"break;case 4:case 6:case 9:case 11:days=30;System.out.println("本月是"+days+"天"System.out.println("本年是365天"case 2:if(b=truedays=29;System.out.println("本月是"+days+"天"System.out.println("本年是366天"elsedays=28;System.o

7、ut.println("本月是"+days+"天"System.out.println("本年是365天"運行結果：3、有ifelse結構對五個數排序源程序：import java.util.Random;public class paixu public static void main(String args Random random =new Random(;float a=random.nextFloat(;System.out.println("a="+a;float b=random.nextFloa

8、t(;System.out.println("b="+b;float c=random.nextFloat(;System.out.println("c="+c;float d=random.nextFloat(;System.out.println("d="+d;float e=random.nextFloat(;System.out.println("e="+e;if(a if(b if(c /System.out.println(" abcd " if(d out .println( &q

9、uot;a ; elseif(c out .println( "a ; elseif(b out .println( "a ; elseif(a out .println( "a ; else System.out.println("e ; elseif(b /System.out.println(" abdc " if(c out .println( "a ; elseif(d out .println( "a ; elseif(b out .println( "a ; elseif(a out .pr

10、intln( "a ; else System.out.println("e ; elseif(a /System.out.println(" adbc " if(c out .println( "a ; elseif(b out .println( "a ; elseif(d out .println( "a ; elseif(a out .println( "a ; else System.out.println("e ; else /System.out.println("dabc&quo

11、t;if(c out .println( "d ; elseif(b out .println( "d ; elseif(a out .println( "d ; elseif(d out .println( "d ; else System.out.println("e ; elseif(a /System.out.println("a acb if(b /System.out.println(" acbd " if(d out .println( "a ; elseif(b out .println(

12、 "a ; elseif(c out .println( "a ; elseif(a out .println( "a ; else System.out.println("e ; elseif(c /System.out.println(" acdb " if(b out .println( "a ; elseif(d out .println( "a ; elseif(c out .println( "a ; elseif(a out .println( "a ; else System.o

13、ut.println("e ; elseif(a /System.out.println(" adcb " if(b out .println( "a ; elseif(c out .println( "a ; elseif(d out .println( "a ; elseif(a out .println( "a ; else System.out.println("e ; else /System.out.println("dacb"if(b out .println( "d ;

14、 elseif(c out .println( "d ; elseif(a out .println( "d ; elseif(d out .println( "d ; else System.out.println("e ; else /System.out.println("cab"/cabif(b /System.out.println(" cabd " if(d out .println( "c ; elseif(b out .println( "c ; elseif(a out .pr

15、intln( "c ; elseif(c out .println( "c ; else System.out.println("e ; elseif(a /System.out.println(" cadb " if(b out .println( "c ; elseif(d out .println( "c ; elseif(a out .println( "c ; elseif(c out .println( "c ; else System.out.println("e ; elseif

16、(c /System.out.println(" cdab " if(b out .println( "c ; elseif(a out .println( "c ; elseif(d out .println( "c ; elseif(c out .println( "c ; else System.out.println("e ; else /System.out.println("dcab"if(b out .println( "d ; elseif(a out .println( &qu

17、ot;d ; elseif(c out .println( "d ; elseif(d out .println( "d ; else System.out.println("e ; elseif(a /System.out.println(" bac "/ if(c /System.out.println(" bacd " if(d out .println( "b ; elseif(c out .println( "b ; elseif(a out .println( "b ; elseif

18、(b out .println( "b ; else System.out.println("e ; elseif(a /System.out.println(" badc " if(c out .println( "b ; elseif(d out .println( "b ; elseif(a out .println( "b ; elseif(b out .println( "b ; else System.out.println("e ; elseif(b /System.out.println(

19、" bdac " if(c out .println( "b ; elseif(a out .println( "b ; elseif(d out .println( "b ; elseif(b out .println( "b ; else System.out.println("e ; else /System.out.println("dbac"if(c out .println( "d ; elseif(a out .println( "d ; elseif(d out .pr

20、intln( "d ; elseif(b out .println( "d ; else System.out.println("e ; elseif(b /System.out.println(" bca " if(a /System.out.println(" bcad " if(d out .println( "b ; elseif(a out .println( "b ; elseif(c out .println( "b ; elseif(b out .println( "b

21、 ; else System.out.println("e ; elseif(c /System.out.println(" bcda " if(a out .println( "b ; elseif(b out .println( "b ; elseif(c out .println( "b ; elseif(d out .println( "b ; else System.out.println("e ; elseif(b /System.out.println(" bdca " if(a

22、out .println( "b ; elseif(c out .println( "b ; elseif(d out .println( "b ; elseif(b out .println( "b ; else System.out.println("e ; else /System.out.println("dbca"if(a out .println( "d ; elseif(c out .println( "d ; elseif(b out .println( "d ; elseif(

23、d out .println( "d ; else System.out.println("e ; else /System.out.println("cba"if(a /System.out.println(" cbad " if(d out .println( "c ; elseif(a out .println( "c ; elseif(b out .println( "c ; elseif(c out .println( "c ; else System.out.println(&quo

24、t;e ; elseif(b /System.out.println(" cbda " if(a out .println( "c ; elseif(d out .println( "c ; elseif(b out .println( "c ; elseif(c out .println( "c ; else System.out.println("e ; elseif(c /System.out.println(" cdba " if(a out .println( "c ; elseif(b out .println( "c ; elseif(d out .println( "c ; elseif(c out .print