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2003-01-26

HashMap の Key と Value を全取得

- Map.Entry を使う

HashMap map = new HashMap();
map.put("key1", "value1");
map.put("key2", "value2");
map.put("key3", "value3");
map.put("key4", "value4");
map.put("key5", "value5");
TreeMap treeMap = new TreeMap(map);
 
Set set = treeMap.entrySet();
Iterator it = set.iterator();
while(it.hasNext()) {
	Map.Entry entry = (Map.Entry) it.next();
	System.out.println(entry.getKey());
	System.out.println(entry.getValue());
}