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import java.util.ArrayList;
import java.util.Collections; import java.util.Comparator; public class Sort implements Comparator<String> {
private final static int UP = 1; private final static int DOWM = -1;
private int state;
public Sort(int state) {
this.state = state; } public Sort() {
}
public int compare(String o1, String o2) {
if (state == Sort.DOWM) { return sortDown(o1, o2); } return sortUp(o1, o2); } private int sortUp(String o1, String o2) {
if (o1.compareTo(o2) < 0) { return -1; } else if (o1.compareTo(o2) > 0) { return 1; } else { return 0; } } private int sortDown(String o1, String o2) {
if (o1.compareTo(o2) > 0) { return -1; } else if (o1.compareTo(o2) < 0) { return 1; } else { return 0; } } public static void main(String[] args) {
ArrayList<String> array = new ArrayList<String>(); array.add("000001"); array.add("000012"); array.add("000005"); array.add("000004"); array.add("000002"); Collections.sort(array, new Sort(Sort.UP)); for (String str : array) {
System.out.println(str); } String a="12345"; String b="12346"; System.out.println(b.compareTo(a)); } } |
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