package bjsxt.com.map; class MapDemo01 { public static void main(String[] args) { String[] arr="this is a cat and that is a mice and where is the food? ".split("regex"); Map<String,Integer> map=new HashMap<String,Integer>(); for(String key:arr) { if(!map.containskey(key)) { map.put(key,new Letter(key)); } Letter value=map.get(key); value.setCount(value.getCount()+1); } for(String key:map.keySet()) { Letter value=map.get(key); System.out.println(key+"-->"+value.getCount()); } } }
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