在这个程序中，我试图随机生成名称，机场目的地/到达以及他们在那里飞行的那天以及时间。当文件中的行数超过10000个条目且少于100,000个条目时，我遇到了终止程序的问题。我提出的解决方案之一是创建一个名为minimumInputs的数组。这相当于可用的机场数量。在flightManifest方法中，我确保添加的条目数等于为给定平面生成的席位数。我不知道如何在每个机场文件达到10,000但不超过100,000个条目时停止。谢谢大家的帮助！
编辑：固定！这是修改问题的编辑while循环。
while (minimumInputs[0] < numberOfEntries && minimumInputs[1] < numberOfEntries && minimumInputs[2] < numberOfEntries && minimumInputs[3] < numberOfEntries && minimumInputs[4] < numberOfEntries && minimumInputs[5] < numberOfEntries && minimumInputs[6] < numberOfEntries && minimumInputs[7] < numberOfEntries && minimumInputs[8] < numberOfEntries && minimumInputs[9] < numberOfEntries && minimumInputs[10] < numberOfEntries && minimumInputs[11] < numberOfEntries && minimumInputs[12] < numberOfEntries && minimumInputs[13] < numberOfEntries && minimumInputs[14] < numberOfEntries && minimumInputs[15] < numberOfEntries && minimumInputs[16] < numberOfEntries && minimumInputs[17] < numberOfEntries && minimumInputs[18] < numberOfEntries && minimumInputs[19] < numberOfEntries && minimumInputs[20] < numberOfEntries && minimumInputs[21] < numberOfEntries && minimumInputs[22] < numberOfEntries && minimumInputs[23] < numberOfEntries && minimumInputs[24] < numberOfEntries) {
flightManifest();
}
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
public class OLE1 {
static String[] airports = {"LAX", "MSP", "FAR", "ATL", "ORD", "DFW", "DEN", "JFK", "SFO", "CLT", "LAS", "PHX", "IAH", "MIA", "PEK", "CAN", "HND", "HKG", "SIN", "LHR", "CDG", "LGW", "MUC", "FRA", "EDI"};
static final int numberOfEntries = 10000;
static String[] firstNames = {"Isis", "Donnette", "Reyes", "Willis", "Kathy", "Elizbeth", "Long", "Jim", "Devorah", "Magda", "Maryetta", "Keturah", "Corrinne", "Shena", "Xiao", "Otha", "Hallie", "Pennie", "Dong", "Kristopher", "Eveline", "Ardella", "Tien", "Tianna", "Loren", "Many", "Anjelica", "Cecile", "Mae", "Jenae", "Sonya", "Dotty", "Florance", "Mittie", "Katia", "Nena", "Lu", "Janee", "Armando", "Leandro", "Claris", "Claudine", "Moriah", "Eddie", "Susan", "Rhoda", "Monnie", "Emelia", "Cory", "Ying"};
static String[] lastNames = {"Belva", "Nam", "Liz", "Jeanett", "Corine", "Abe", "Olga", "Olevia", "Ernestine", "Joanne", "Sharyn", "Heidi", "Zachariah", "Sylvester", "Luetta", "Stephaine", "Garrett", "Debby", "Judi", "Noe", "Maybelle", "Eldora", "Roseann", "Madge", "Glayds", "Eleonore", "Josephine", "Quincy", "Alyson", "Earlene", "Clementina", "Jeri", "Kristel", "Carrol", "Zona", "Eileen", "Margherita", "Joline", "Terence", "Christinia", "Eldon", "Arleen", "Aimee", "Chanda", "Carin", "Prudence", "Tanja", "Kathlene", "Kareen", "Geneva"};
static String[] middleInitial = {"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"};
static int minimumInputs[] = new int[25];
static int count = 0;
public static void main(String args[]) throws IOException {
System.out.println("Welcome to the airplane program. This program will go ahead and create a list of all the passengers that have gone through 25 different airports.");
System.out.println("The list of the airports we keep track of are listed below\n");
int count = 0;
//for listing out the airport names
for (int i = 0; i < 5; i++) {
System.out.print(airports[count]);
count++;
System.out.print(" | " + airports[count]);
count++;
System.out.print(" | " + airports[count]);
count++;
System.out.print(" | " + airports[count]);
count++;
System.out.println(" | " + airports[count]);
count++;
}
/*
for (int i = 0; i < 1000; i++) {
if (flightSeatingAmount() >= 850) {
System.out.println("check this" + flightSeatingAmount());
}
System.out.println(flightSeatingAmount());
}
*/
//Need to add it so its not more than 100,000 entries in a file.
while(minimumInputs[0] < numberOfEntries || minimumInputs[1] < numberOfEntries || minimumInputs[2] < numberOfEntries || minimumInputs[3] < numberOfEntries || minimumInputs[4] < numberOfEntries || minimumInputs[5] < numberOfEntries || minimumInputs[6] < numberOfEntries || minimumInputs[7] < numberOfEntries || minimumInputs[8] < numberOfEntries || minimumInputs[9] < numberOfEntries || minimumInputs[10] < numberOfEntries || minimumInputs[11] < numberOfEntries || minimumInputs[12] < numberOfEntries || minimumInputs[13] < numberOfEntries || minimumInputs[14] < numberOfEntries || minimumInputs[15] < numberOfEntries || minimumInputs[16] < numberOfEntries || minimumInputs[17] < numberOfEntries || minimumInputs[18] < numberOfEntries || minimumInputs[19] < numberOfEntries || minimumInputs[20] < numberOfEntries || minimumInputs[21] < numberOfEntries || minimumInputs[22] < numberOfEntries || minimumInputs[23] < numberOfEntries || minimumInputs[24] < numberOfEntries) {
flightManifest();
}
System.out.println("The files have been compiled.");
}
public static int flightSeatingAmount() {
int flight = (int)(50 + (Math.random() * 800));
return flight;
}
public static String nameGenerator() {
String names = "";
int firstAndLast = (int)(Math.random() * 50);
int initial = (int)(Math.random() * 26);
names = lastNames[firstAndLast] + "," + firstNames[firstAndLast] + "," + middleInitial[initial];
return names;
}
public static int airportSelectionOne() {
int airportOne = (int)(Math.random() * (25 - 1));
return airportOne;
}
public static int airportSelectionTwo() {
int airportTwo = (int)(Math.random() * (25 - 1));
return airportTwo;
}
public static int flightTimeIntervalMinutes() {
int timing[] = {15, 30, 45, 00};
int randomTiming = (int)(Math.random() * 4);
return timing[randomTiming];
}
public static int flightTimeIntervalHours() {
int timing = (int)(Math.random() * 24);
return timing;
}
public static int flightDuration() {
int duration = 0;
if (airportSelectionOne() >= 0 && airportSelectionOne() <= 13 && airportSelectionTwo() >= 14 && airportSelectionTwo() <= 18) {
duration = 22;
}
if (airportSelectionOne() >= 0 && airportSelectionOne() <= 13 && airportSelectionTwo() >= 19 && airportSelectionTwo() <= 24) {
duration = 9;
}
if (airportSelectionOne() >= 14 && airportSelectionOne() <= 18 && airportSelectionTwo() >= 0 && airportSelectionTwo() <= 13) {
duration = 22;
}
if (airportSelectionOne() >= 14 && airportSelectionOne() <= 18 && airportSelectionTwo() >= 19 && airportSelectionTwo() <= 24) {
duration = 10;
}
if (airportSelectionOne() >= 19 && airportSelectionOne() <= 24 && airportSelectionTwo() >= 0 && airportSelectionTwo() <= 13) {
duration = 9;
}
if (airportSelectionOne() >= 19 && airportSelectionOne() <= 24 && airportSelectionTwo() >= 14 && airportSelectionTwo() <= 18) {
duration = 10;
}
if (airportSelectionOne() >= 0 && airportSelectionOne() <= 10 && airportSelectionTwo() >= 0 && airportSelectionTwo() <= 13) {
duration = 3;
}
if (airportSelectionOne() >= 14 && airportSelectionOne() <= 18 && airportSelectionTwo() >= 14 && airportSelectionTwo() <= 18) {
duration = 2;
}
if (airportSelectionOne() >= 19 && airportSelectionOne() <= 24 && airportSelectionTwo() >= 19 && airportSelectionTwo() <= 24) {
duration = 2;
}
return duration;
}
public static void flightManifest() throws IOException {
String departure = airports[airportSelectionOne()];
String arrival = airports[airportSelectionTwo()];
PrintWriter outputFileDeparture = new PrintWriter(new FileWriter(departure.toLowerCase() + ".txt", true));
PrintWriter outputFileArrival = new PrintWriter(new FileWriter(arrival.toLowerCase() + ".txt", true));
minimumInputs[airportSelectionOne()] = minimumInputs[airportSelectionOne()] + flightSeatingAmount();
minimumInputs[airportSelectionTwo()] = minimumInputs[airportSelectionTwo()] + flightSeatingAmount();
int day = (int)(Math.random() * 21);
int flightHours = flightTimeIntervalHours();
int flightMinutes = flightTimeIntervalHours();
for (int i = 0; i <= flightSeatingAmount(); i++) {
String passengersName = nameGenerator();
int arrivalHour = (flightHours + flightDuration());
if(arrivalHour > 24) {
arrivalHour = arrivalHour - 24;
}
outputFileDeparture.println(passengersName + "," + "0" + "," + departure + "," + String.format("%02d", day) + flightHours + flightMinutes);
outputFileArrival.println(passengersName + "," + "1" + "," + arrival + "," + String.format("%02d", day) + (flightHours + flightDuration()) + flightMinutes);
//System.out.println(count);
//count++;
}
outputFileDeparture.close();
outputFileArrival.close();
}
}
答案 0 :(得分：0)
我还没有足够的回复评论:(
你不能使用do-while循环吗？您将覆盖最小整数的数学方法并修改该方法，以使其适合您的喜好。然后对最大数量执行相同操作。然后说while（num＆gt; min＆amp;＆amp;＆lt; max）
我不确定这是否100％合理，但它可能有用......