java實現連續的數字作爲一段，單獨數字單爲一段

package hebin;

import java.util.ArrayList;
import java.util.List;

/**
 * 將連續的數字合併爲一段
 * Created by tower on 13-12-29.
 */
public class MergerDataForSegment {
    public static void main(String[] args) {
        int[] data = {1, 3, 6, 7, 8, 9, 10, 13, 14, 15, 16, 19, 20};
        int size = data.length;
        int curr = -1;
        int next = -1;
        List<Integer> list = new ArrayList<Integer>();
        for (int i = 0; i < size; i++) {
            curr = data[i];
            if (i == 0) {
                System.out.println(curr);
                list.add(curr);//第一個元素
            }
            if ((i + 1) == size) {
                list.add(data[i]);//最後一個元素
                break;
            }
            next = data[i + 1];
            if (Math.abs((curr - next)) == 1) {

            } else {
                System.out.println(curr + "--" + next);//前一段段尾，後一段段頭
                list.add(curr);
                list.add(next);
            }

        }
        //每2個作爲1段
        int total = list.size();
        for (int i = 0; i < total; i++) {
            System.out.print(list.get(i) + " ");
        }
    }
}