比较两个字符数组，比较难。解决办法

比较两个字符数组，比较难。
现在比较两个字符数组：String []a={"x","y","xy","yx"}，String[]b={"xy","y","yx","a","b"}

最后需要记录反应三种信息：
1、b比a多哪些字符串？
2、b比a少哪些字符串？
3、b与a中顺序不同的字符串有哪些？




[解决办法]
前两个我帮你做出来了
最后一个不知道你要的结果是怎么样所以就不帮你做了,
如果不知道,写清楚需要什么我再帮你写

Java code

public class NameSystem1 {    public List BMoreToA(String[] a, String[] b) {        List temp = new ArrayList();        for (int i = 0; i < b.length; i++) {            boolean flag = false;            for (int j = 0; j < a.length; j++) {                if (b[i].equals(a[j])) {                    flag = true;                    break;                } else {                    flag = false;                }            }            if (!flag) {                temp.add(b[i]);            }        }        return temp;    }    public static void main(String[] args) {        NameSystem1 test = new NameSystem1();        String[] a = { "x", "y", "xy", "yx" };        String[] b = { "xy", "y", "yx", "a", "b" };        List temp = null;        temp = test.BMoreToA(a, b);        System.out.println("B比A多的字符串");        for (int i = 0; i < temp.size(); i++) {            System.out.print(temp.get(i) + "   ");        }        System.out.println("");        System.out.println("B比A少的字符串");        temp = test.BMoreToA(b, a);        for (int i = 0; i < temp.size(); i++) {            System.out.print(temp.get(i) + "   ");        }    }}
[解决办法]
Java code
import java.util.List;import java.util.ArrayList;import java.util.Iterator;/** * Author: db2admin * Date  : 2010-2-4 * Time  : 15:41:37 * Comment: */public class test {    public static List toArrayList(String[] temp) {        List templist=new ArrayList();        for (int i = 0; i < temp.length; i++) {            templist.add(temp[i]);        }        return templist;    }    public static List romove(List lista,List listb){        lista.removeAll(listb);        return lista;        //System.out.println(lista);    }    public static List compareArr(String[] a,String[] b){        List commonlist=new ArrayList();        if(a.length<b.length){            for(int i=0;i<a.length;i++){                if(a[i].equals(b[i]))                    commonlist.add(a[i]);            }        }        return commonlist;    }    public static void main(String[] args){        String[] a = {"x", "y", "xy", "yx"};        String[] b = {"xy", "y", "yx", "a", "b"};        //  A-B        System.out.println(test.romove(test.toArrayList(a),test.toArrayList(b)));        //  B-A        System.out.println(test.romove(test.toArrayList(b),test.toArrayList(a)));        //  A-(A-B) 公共集        System.out.println(                test.romove(test.toArrayList(a),test.romove(test.toArrayList(a),test.toArrayList(b)))        );        // 公共集-顺序值相同集        System.out.println(                test.romove(                        test.romove(test.toArrayList(a),test.romove(test.toArrayList(a),test.toArrayList(b))),                        test.compareArr(a,b))        );    }}