[英]Global variables in the main Java
我有以下問題,並且知道為什么這會給我帶來一些問題。 我想知道是否有一種方法可以在市場數組的聲明中使用標記的方式?
public class Main {
static final int[] market = new int[nmarked];
public static void main(String[] args) {
int nmarked=3;
}
}
多謝!
您可以在main方法內部初始化數組(盡管它不能是final
):
static int[] market;
public static void main(String[] args) {
int nmarked=3;
market = new int[nmarked];
}
這是代碼的更好視圖:
public static void main(String[] args) {
int [] market = new int[3];
for (int i=0;i<3;i++) market[i]=i;
Consume_order consume = Consume_order(market);
consume.start();
}
public class Consume_order extends Thread {
public run(){
private int[] array;
public Consume_order(int[] array) {
this.array=array;
}
System.out.println(array[0]);
}
}
你想通過nmarket嗎? 您不需要通過它,請使用:market.length
要么:
public class Market {
final int[] market;
public Market(int nmarked) {
market = new int[nmarked];
}
}
// from main you can call it:
Market market = new Market(3);
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.