stringlengthsort.java

关于java面向对象系统分析方面的课件

/*
 * StringLengthSort
 * 2007
 * 按字符串长度排序
 */
public class StringLengthSort extends GenericSort {

    public int compare(Object o1, Object o2) {
        int o1Length = ((String) o1).length();
        int o2Length = ((String) o2).length();
        int result = 0;
        if (o1Length > o2Length) {
            result = 1;
        } else if (o1Length < o2Length) {
            result = -1;
        }
        return result;
    }

    public static void main(String[] args) {
        String[] s = { "sdf", "sdfsdfd", "s1df", "sdfsdfdfsdf" };
        Sort sort = new StringLengthSort();
        sort.downSort(s);
        for (int i = 0; i < s.length; i++) {
            System.out.println(s[i]);
        }

        sort.upSort(s);
        for (int i = 0; i < s.length; i++) {
            System.out.println(s[i]);
        }
    }

}