java - 具有字符串数组和整数数组值的 HashMap 不打印输出

Question

我希望使用 Hashmap 打印数组的值和键...但我正在使用它获取 Adress。

 import java.io.FileReader;
 import java.io.IOException;
 import java.util.HashMap;
 import java.util.Map.Entry;

import java.util.Set;
import au.com.bytecode.opencsv.CSVReader;
import java.util.Arrays;
import java.util.Collection;

public class ArrayHash

{
    public static void main(String args[]) throws IOException
    {
        int[] WorkingDay=new int[13];
        int i=0;
        String[] Name=new String[13];       
        String file="C:\\Users\\Dhananjay Kumar\\Empdetail\\Detail.csv";
        HashMap<String[],int[]> hashfunc=new HashMap<String[],int[]>();
        CSVReader reader=new CSVReader(new FileReader(file));
        String[] read;
        while((read = reader.readNext()) !=null)
        {
            WorkingDay[i]=Integer.parseInt(read[2]);
             Name[i]=read[0];
             i++;           
        }
        hashfunc.put(Name,WorkingDay);
        hashfunc.get(Name);
        Set<Entry<String[], int[]>> entrySet = hashfunc.entrySet();     
        for (Entry entry : entrySet)
        {
            System.out.println("key: " + entry.getKey() + " value: " + entry.getValue());           
        }   
    }
}

Answer 1

用途:

System.out.println("key: " + entry.getKey() + " value: " + Arrays.toString(entry.getValue()));