java 数组_java基础类型数组 统一接收

三： 全局数组

        全局数组初始化, int 类型数组初始化为 0，boolean 数组初始化为 false。

        举例：全排列

import java.util.Hashtable;

public class Quanpailie {
	private static int n;
	private static int maxn = 11;
	static int p[] = new int[maxn]; //初始化 maxn 个0
	static boolean hashTable[] = new boolean[maxn]; //初始化 maxn 个 false
	public static void generateP(int index) {
		if (index == n+1) {
			for (int i = 1; i <= n; i++) {
				System.out.print(p[i]+" ");
			}
			System.out.println();
			return;
		}
		
		for (int x = 1; x <= n; x++) {
			if (hashTable[x] == false) {
				hashTable[x] = true;
				p[index] = x;
				generateP(index+1);
				hashTable[x] = false;
			}
		}
	}
	public static void main(String[] args) {
		System.out.println(hashTable.length);
		for (int i = 0; i < maxn; i++) {
			System.out.println(p[i]); 
		}
		n = 3;
		generateP(1);
	}
}
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