我有哈希图列表。我想遍历数据。请帮我举个例子。我有一张表,其中在 Y 轴上有几个月,在 X 轴上有字段(MS_Target、HSD_Target、ALPG_Target、Lube_Target)。我的代码如下:
List<Map<String, Integer>> ListofHash = new ArrayList<Map<String, Integer>>();
{
for (int i = 0; i < 10; i++)
{
Map<String, Integer> mMap = new HashMap<String, Integer>();
mMap.put(String.valueOf(i), Integer.valueOf( + i));
ListofHash.add(mMap);
}
for (Map<String, Integer> map : ListofHash)
{
for (String key : map.keySet())
{
System.out.println(map.get(key));
}
}
HashMap <String,Integer> april= new HashMap <String,Integer>();
april.put("aprMS",new Integer(1));
april.put("aprHSD",new Integer(2));
april.put("aprAlpg",new Integer(3));
april.put("aprLubes",new Integer(4));
HashMap <String, Integer> may= new HashMap <String, Integer>();
may.put("mayMS",new Integer(1));
may.put("mayHSD",new Integer(2));
may.put("mayAlpg",new Integer(3));
may.put("mayLubes",new Integer(4));
}
同样,我已经为所有月份创建了 hashmap。另外,请建议我应该采用什么键和值。请帮我举个例子。我为所有字段赋予了唯一的名称。例如: apr_MS , apr_HSD 等。我的表如下:
Month MS_Target HSD_Target ALPG_Target Lubes_Target
April
May
June
July
August
September
October
November
December
January
February
March