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請閱讀做任何事情之前底部（但它可能會很長）Java：如何在另一個文件中導入變量？
我試圖做一個基於文本的Minecraft服務器，我有在Mines.java麻煩。我想從Main.java中將Mins.java中的整數'money'導入到[您將看到7斜槓註釋]中。我試過import [package].Main.main.money，但沒有奏效。
我正在使用Mars.1 Eclipse。
Main.java
// NOTE: Please read 'cc.txt' in src folder before modifying
package com.quaggles.main;
import java.util.Scanner;
public class Main {
// System.out.println(""); (to copy)
// System objects
static boolean running = true;
static Scanner in = new Scanner(System.in);
static String input;
static String username;
// Game variables
static int coins = 100;
static int level = 1;
// Methods that may come in handy
public static void PETC() {
System.out.println("Press enter to continue...");
try {
System.in.read();
} catch (Exception e) {
// Handle any exceptions
}
}
// Doesn't work in java console (sorry Eclipse users) (still testing)
public static void clearConsole() {
try {
final String os = System.getProperty("os.name");
if (os.contains("Windows")) {
Runtime.getRuntime().exec("cls");
} else {
Runtime.getRuntime().exec("clear");
}
} catch (final Exception e) {
// Handle any exceptions
}
}
public static void main(String[] args) {
USER: while (running) {
System.out.println("What is your username:");
input = in.nextLine();
if (input.equals("")) {
System.out.println("You typed nothing! Please try again.");
PETC();
clearConsole();
continue USER;
} else {
username = input;
break USER;
}
}
clearConsole();
System.out.println("Running on " + System.getProperty("os.name") + "\n");
System.out.println("Welcome to...");
System.out.println(" _____ _____ __ _");
System.out.println("/____| /____| /_| |");
System.out.println(" | (___ ___ _ ____ _____ _ __| | _ __ __ _| |_| |_");
System.out.println(" \\___ \\/_ \\ '__\\ \\// _ \\ '__| | | '__/ _` | _| __|");
System.out.println(" ____) | __/ | \\ V/__/ | | |____| | | (_| | | | |_");
System.out.println(" |_____/ \\___|_| \\_/ \\___|_| \\_____|_| \\__,_|_| \\__|\n");
System.out.println(" v0.0.1 beta");
System.out.println("------------------------------------------");
System.out.println("ServerCraft is a project made by Quaggle\n" + "that tries to answer the question:\n"
+ "What if a Minecraft server was text based?");
System.out.println("------------------------------------------\n");
PETC();
clearConsole();
System.out.println("------------------------------------------");
GAME: while (running) {
input = in.nextLine().toLowerCase();
if (input.equals("exit")) {
break GAME;
} else if (input.equals("help")) {
clearConsole();
System.out.println("HELP");
System.out.println("------------------------------------------");
System.out.println("help - shows all* commands");
System.out.println("stats - shows your stats");
System.out.println("updates - show any updates on the game");
System.out.println("mine - go to the mines");
System.out.println("home");
System.out.println("exit - quits the game :(\n");
System.out.println("*not actually all - find them out yourself ;)");
PETC();
clearConsole();
continue GAME;
} else if (input.equals("stats")) {
System.out.println("STATISTICS");
System.out.println("------------------------------------------");
System.out.println("Coins: " + coins);
System.out.println("Level " + level);
PETC();
clearConsole();
continue GAME;
} else if (input.equals("updates")) {
System.out.println("UPDATES");
System.out.println("------------------------------------------");
System.out.println("");
System.out.println("1-8-16 - PRECIOUS");
System.out.println("Added mining and a money system\n");
System.out.println("1-7-16 - Mr. Krabs! I have an idea!");
System.out.println("I finally started working on the game after countless reconsiderations & regrets!");
} else if (input.equals("mine")) {
com.quaggles.main.Mines.mine();
} else {
System.out.println("\'" + input + "\' is not a command.");
}
}
System.out.println("Thanks for playing, " + username + "!");
PETC();
System.exit(0);
}
}
Mines.java
// NOTE: Please read 'cc.txt' in src folder before modifying
// WORK IN PROGRESS: I am still working on this, (may be very buggy)
package com.quaggles.main;
import java.util.Scanner;
import com.quaggles.main.Main.*; //unneeded at the moment
public class Mines {
// System objects
static boolean running = true;
static Scanner in = new Scanner(System.in);
static String input;
/////// Import 'money' from Main.java
static int pickaxe = 1;
static int pickaxeXP = 0;
static int pickaxeLevelUp = 100;
// Game variables
public static void mine() {
GAME: while (running) {
System.out.println("Welcome to the...");
System.out.println(" __ __ _ ");
System.out.println(" | \\/ (_) ");
System.out.println(" | \\/|_ _ __ ___ ___ ");
System.out.println(" | |\\/| | | '_ \\/_ \\/ __|");
System.out.println(" | | | | | | | | __/\\__ \\");
System.out.println(" |_| |_|_|_| |_|\\___||___/");
System.out.println("------------------------------------------");
System.out.println("Type \'mine\' to start mining");
input = in.nextLine();
if (input.equals("mine")) {
/////// money
}
}
}
}
編輯：我才意識到 '錢' 不存在的，我忘了我改名爲「硬幣「，這應該消除任何困惑。
好吧，我會盡量做到儘可能深入。
有人說我的'如何執行另一個文件'，也許我應該參加java編程課程，而不是通過Stack Overflow學習編程語言，我尊重這一點。
我只是想說清楚一點，我喜歡以自己特殊的方式學習東西。我是11歲，從我的角度來看，YouTube上的所有課程要麼解釋得太慢，以至於在第11集中，我們仍然會學習整數，或者他們過快地學習東西。而且那些不是在youtube上花錢，所以不要推薦我任何東西，這很好。此外，你不要有回答。謝謝你，無論那是誰。
對於** 11 ** - 歲，確實令人印象深刻。 –
請擴大「*沒有工作*」。究竟發生了什麼？ –
雖然我明白你想'以你自己的方式學習'，但它仍然有助於瀏覽書籍或採取其他免費課程，如https://www.udacity.com/course/intro-to-java-programming- -cs046或https://docs.oracle.com/javase/tutorial/。關鍵是編程使用「語言」，你需要能夠溝通。在這一點上，我不知道你的班級（思想家）的錢方法（認爲是門）應該連接到哪裏。我現在要離開我的高馬。在11試穿道具。 –