小编Woo*_*ody的帖子

有没有办法用任何/函数/技巧来计算CIDR 给定的a ？我一直在寻找一段时间,我所能找到的只是来自 我需要它的另一种方式 ...我不是那么方便,但我愿意阅读很多=)thnx人Sub net maskJava libCIDR -> NetmaskNetmask -> CIDRJava

PzP =)

Map<String, List<OfferBean>> map = new HashMap<String, List<OfferBean>>();
            List<OfferBean> al=new ArrayList<OfferBean>();
            OfferBean of=null;
            sql="select * from catgory";
            ps1=c.prepareStatement(sql);
            ps1.execute();
            rs=ps1.getResultSet();
            if(rs.next())
            {
                System.out.println("inside loop of if");
                sql="select * from catgory";
                ps1=c.prepareStatement(sql);
                ps1.execute();
                rs=ps1.getResultSet();
                while(rs.next())
                {
                    of=new OfferBean();
                    System.out.println("inside loop of while");
                    of.setCategory(rs.getString("catgoryname"));
                    al.add(of);
                }
           map.put("key", al);

我想用两个ArrayList两个ArrayList我会把里面HashMap用钥匙,我想传递给jsp在一旁jsp一边我想用检索的数据jstl是如何reteive PLZ任何一个可以帮助我

rangeList = [range(15, 20), range(7, 10), range(11, 14)]

如何对 进行排序rangeList，使结果列表如下所示，根据范围的起始值进行排序？

sortedRangeList = [range(7, 10), range(11, 14), range(15, 20)]

我已经建立了（使用Builder模式）具有三个字段的Employee对象Name，Age并且Gender。

public class Employee {

    private String name;
    private String age;
    private String gender;

    // Constructor
    private Employee(Builder builder) {
        this.name = builder.name;
        this.age = builder.age;
        this.gender = builder.gender;
    }

    // Employee Builder
    public static class Builder {
        private String name;
        private String age;
        private String gender;

        public Builder name(String name) {
            this.name = name;
            return this;
        }

        public Builder age(String age) {
            this.age = age;
            return this;
        }

        public Builder gender(String …