こういうコードが読みやすいって？馬鹿なの？


Map<String, Integer> bag = new HashMap<String, Integer>();
BufferedReader br = new BufferedReader(new FileReader(new File("sample.txt")));
String line = br.readLine();
while(line != null){
    for (String str : line.split(" ")) {
        Integer n = bag.get(str);
        if (n != null) {
            bag.put(str, n + 1);
        } else {
            bag.put(str, 1);
        }
    }
    line = br.readLine();
}
br.close();
for(Map.Entry<String, Integer> entry : bag.entrySet()){
    System.out.printf("%s: %s\n", entry.getKey(), entry.getValue());
}