java 数组序列化成字符串 java把数组转化为字符串

package day16;
//自定义int数组,将数组拼接成字符串,两种方式实现!
public class ArrayToString {
	public static void main(String[] args) {
		int arr[] = { 11, 22, 33, 44, 55, 66 };
		arrayToString(arr);
		System.out.println("-------------");
		arrayToString1(arr);
	}
//方式一:利用String类的空字符串拼接功能
	private static void arrayToString(int[] arr) {
		String s = "";
		s += "[";
		for (int i = 0; i < arr.length; i++) {
			if (i == arr.length - 1) {
				s += arr[i] + "]";
			} else {
				s += arr[i] + ",";
			}
		}
		System.out.println(s);
	}
//方式二:利用StringBuffer的toString()方法
	private static void arrayToString1(int[] arr) {
		StringBuffer sb = new StringBuffer();
		sb.append("[");
		for (int i = 0; i < arr.length; i++) {
			if (i == arr.length - 1) {
				sb.append(arr[i] + "]");
			} else {
				sb.append(arr[i] + ",");
			}
		}
       System.out.println(sb.toString());
	}
}