JAVA经典实用程序代码(4)

package hotel;

import java.util.Scanner;

public class HotelManager { private static String[][] rooms;// 表示房间 public static void main(String[] args) { rooms = new String[10][12]; String comm;// 表示用户输入的命令 for (int i = 0; i < rooms.length; i++) { for (int j = 0; j < rooms[0].length; j++) { rooms[i][j] = \ } } // while (true) { System.out.println(\请输入命令：\ Scanner sca = new Scanner(System.in); System.gc(); comm = sca.next(); if (\ search(); } else if (\ int roomNo = sca.nextInt(); String name = sca.next(); in(roomNo, name); } else if (\ int roomNo = sca.nextInt(); out(roomNo); } else if (\ System.out.println(\程序退出...\ break; } else { System.out.println(\命令输入错误，请重新输入：\ } } } private static void out(int roomNo) { if(\ System.out.println(\该房间没有客人入住，退房失败！\

}

return; }

rooms[(roomNo/100)-1][(roomNo0)-1]=\System.out.println(roomNo+\退房成功！\

private static void in(int roomNo, String name) { if(!\ System.out.println(\该房间已经有客人入住！\ return; } rooms[(roomNo/100)-1][(roomNo0)-1]=name; System.out.println(name+\成功入住\房间！\ }

private static void search() { for (int i = 0; i < rooms.length; i++) { //打印房间号 for (int j = 0; j < rooms[0].length; j++) { if (j + 1 < 10) { System.out.print(i + 1 + \\ } else { System.out.print(i + 1 + \ } } //打印房间状态 System.out.println(); for (int j = 0; j < rooms[0].length; j++) { System.out.print(rooms[i][j] + \\ } System.out.println(); } }

}

18.StudentManager

package day05.student_manager; import java.util.Scanner;

public class StudentManager { static int[][] scores=new int[6][5]; static String[] students={\ static String[] courses={\ public static void main(String[] args) { for(int i=0;i

// int cIndex=-1; for(int i=0;i

public static void sort(String course){ int[] courseScore=new int[scores.length]; if(course.equals(\如果求总分的排名 //求出每个学生的总分，将成绩存放在courseScore数组中 for(int i=0;i

courseScore[i]=studentSum; }

}else{//如果不是求总分排名 int cIndex=-1; for(int i=0;i

String[] studentCopy=new String[students.length];

System.arraycopy(students, 0, studentCopy, 0, students.length);

for(int i=0;i

int order=1;

System.out.println(\名次\\t学生\\t成绩\for(int i=0;i