java集合map取key使用示例 java遍历map

复制代码 代码如下:

for (Iterator i = keys.iterator(); i.hasNext()
       {
           String key = (String) i.next();
           String value = (String) map.get(key);
           text+=key + " = " + value;
       }

复制代码 代码如下:

<span style="border-collapse: collapse; font-family: Arial,'Liberation Sans','DejaVu Sans',sans-serif; line-height: 18px; font-size: 14px; white-space: normal;"><pre class="lang-java prettyprint"><span>
</span></pre>
</span>
或者
or (Map.Entry<String,String> entry : map.entrySet()) {
  String key = entry.getKey();
  String value = entry.getValue();
  // do stuff
}   Iterator<Entry<String,String>> iterator = map.entrySet().iterator();

复制代码 代码如下:

        Entry< String,String> entry;
        while(iterator.hasNext()){
            entry = iterator.next();
            Log.d("Key Value",entry.getKey()+" "+entry.getValue());
        }