JAVA经典实用程序代码(3)

} }

11找出满足条件的最小数

package day02; public class Fangk{ public static void main(String[] args){ // for(int i=1000;i<=9999;i++){ // int q=i/1000; // int b=i/100; // int s=i/10; // int g=i; // if(q>b && s>g && q+g==b+s && b%2!=0){ // System.out.println(\// break; // } // } loop1: for(int q=1;q<=9;q++){ loop2: for(int b=0;b<=9;b++){ if(b%2==0){ continue loop2; } for(int s=0;s<=9;s++){ for(int g=0;g<=9;g++){ if(q>b && s>g && q+g==b+s){ System.out.println(\is:\ break loop1; } } } } } } }

Min Number

12判断一个数是否是素数

package day02; public class Fangk{ public static void main(String[] args){ int num=14; boolean flag=true; for(int i=2;i<=num/2;i++){ if(num%i==0){ flag=false; break; } } if(flag){ System.out.println(num+\ }else{ System.out.println(num+\ } } }

////////////////////////////////////////////////////////////////////// package day04;

import java.util.Scanner;

public class A1{

public static void main(String[] args){ int n; Scanner sca=new Scanner(System.in); System.out.println(\ n=sca.nextInt(); if(isPrimeNumber(n)){ System.out.println(n+\ }else{ System.out.println(n+\

} }

public static boolean isPrimeNumber(int n){ for(int i=2;i<=n/2;i++){ if(n%i==0){ return false; } } return true; } }

13一个数倒序排列

package day02; public class Daoxu{ public static void main(String[] args){ int olddata=3758; int newdata=0; while(olddata!=0){ for(int i=0;i<4;i++){ newdata=newdata*10+olddata; olddata=olddata/10; } System.out.println(\ } } }

14将一个整数以二进制输出

package day04;

import java.util.Scanner;

public class ArrayTest {

public static void main(String[] args){ int n; Scanner s=new Scanner(System.in); System.out.println(\ n=s.nextInt(); for(int i=31;i>=0;i--){ if((n&(1<

15矩形图案

package day02;

public class Fangk { public static void main(String[] args){ int m=5,n=6; for(int i=0;i

} }

16猜数字

package day02;

import java.util.Scanner;

public class Csz { public static void main(String[] args) { Scanner s = new Scanner(System.in); int num = (int) (Math.random() * 1000); int m=0; for(int i=9;i>=0;i--){ System.out.println(\ m=s.nextInt(); if(m>num){ System.out.println(\ }else if(m0){ System.out.println(\还有\次机会！\ } } if( m!=num){ System.out.println(\下次再来吧！\ } } }

17.HotelManager