testmap.java~64~

梅花雪树的经典制作

package com.test;

import java.util.*;
import java.io.*;

public class TestMap {
    public TestMap() {
    }

    public static void main(String[] args) {
        /* TestMap testmap = new TestMap();
         Map map = new HashMap();
         //synchronized (map) {
             map.put("username", "wyg");
             map.put("username", "wyg1");
             map.put("pwd", "password");
             map.put("count", 1);
         //}
//        System.out.println(map.get("username"));
//        System.out.println(map.get("pwd"));
//        System.out.println(map.get("count"));
           Iterator iterator = map.keySet().iterator();

           while(iterator.hasNext()){
              Object o = iterator.next();
              System.out.println(o+":"+map.get(o));
           }*/
        /*
                File f = new File("c:/sql.properties");
                Properties pro = new Properties();
                InputStream is = null;
                try {
                    is = new FileInputStream(f);
                    pro.load(is);
                    System.out.println(pro.get("username"));
                    System.out.println(pro.get("pwd"));
                } catch (Exception ex) {
                }*/

        /* Set set = new HashSet();
         set.add("test");
         set.add("test");
         System.out.println(set.size());
         Object[] obj = set.toArray();
         for (int i = 0; i < obj.length; i++) {
             System.out.println(obj[i]);
         }

         Iterator  it = set.iterator();
         while(it.hasNext()){
            Object o = it.next();
            System.out.println(o);
         }*/

        /*List list = new Vector();
                 list.add("test");
                 list.add("test3");
                 list.add("test34");
                 list.add("test345");
                 int count = list.size();
//        for (int i = 0; i < count; i++) {
//            list.remove(0);
//                         }

                 for (int i = 0; i < list.size(); i++) {
            System.out.println(list.get(i));
                 }

                 for (Object o : list) {
            System.out.println(o);
                 }*/
//        int[] myarray = {23, 56, 1, 79, 108};
//        Arrays.sort(myarray);
//
//        for (int i = 0; i < myarray.length; i++) {
//            System.out.println(myarray[i]);
//        }

        // int[] mytest = {23,56,1,79,108};
        /* List mytest = new ArrayList();
         mytest.add(23);
         mytest.add(56);
         mytest.add(1);
         mytest.add(108);
         mytest.add(79);

         Collections.sort(mytest);
         for (int i = 0; i < mytest.size(); i++) {
             System.out.println(mytest.get(i));
         }*/
        /*List ls = new ArrayList();
        Dog dog1 = new Dog(1, "xh");
        Dog dog2 = new Dog(7, "xh7");
        Dog dog3 = new Dog(3, "xh3");
        ls.add(dog1);
        System.out.println("dog1:" + dog1);
        ls.add(dog2);
        System.out.println("dog2:" + dog2);
        ls.add(dog3);
        System.out.println("dog3:" + dog3);
        Collections.sort(ls);
        for (int i = 0; i < ls.size(); i++) {
            Dog dog = (Dog) (ls.get(i));
            System.out.println(dog.age);
        }*/
        int i = 6;
        Integer newi = new Integer(6);
        newi = i;//打包
        i = newi;
    }


}


class Dog implements Comparable {
    public int age;
    public String name;

    public Dog(int age, String name) {
        this.age = age;
        this.name = name;
    }

    public int compareTo(Object o) {
        if (o instanceof Dog) {
            try {
                throw new Exception("不同对象不能比较");
            } catch (Exception ex) {
            }
        }
        Dog dog = (Dog)o;
        if(this.age>dog.age){
           return 1;
        }else if(this.age==dog.age){
           return 0;
        }else{
            return -1;
        }
    }
}