Guava使用笔记系列之集合工具的高…

package com.qunar.google.guava.range;

import com.google.common.collect.*;

import org.junit.Test;

import java.util.Map;

import java.util.Random;

import java.util.TreeMap;

public class RangeUtilsTest {

    @Test

    public voidtest1(){

       Range firstRange=Range.open(1, 10);

       printRange(firstRange);

       TreeRangeMap rangeMap =TreeRangeMap.create();

       rangeMap.put(Range.closedOpen(1,10),"[1-10)");

       rangeMap.put(Range.closedOpen(10,100),"[10-100)");

       rangeMap.put(Range.closedOpen(100,1000),"[100-1000)");

       Map, String> rangeStringMap =rangeMap.asMapOfRanges();

       int randomValue = newRandom().nextInt(1000)+1;

       for (Map.Entry, String> rangeStringEntry :rangeStringMap.entrySet()) {

           Rangerange = rangeStringEntry.getKey();

           if(range.contains(randomValue)){

             System.out.println(randomValue +" is belong to"+range.toString());

             System.out.println(rangeStringEntry.getValue());

           }else{

             System.out.println(randomValue +" is not  belongto "+range.toString());

           }

       }

    }

    private voidprintRange(Range firstRange){

       ContiguousSet integers =ContiguousSet.create(firstRange, DiscreteDomain.integers());

       for (Integer integer : integers) {

          System.out.println(integer);

       }

    }

}