CountedSet<E>

Posted by Bruce Tsai

說明

可計算次數的 Set 集合。

範例

CountedSet<String> countedSet = new CountedSet<>();
countedSet.add("Bruce");
countedSet.add("Bruce");
countedSet.add("Linda");
countedSet.add("James");
countedSet.add("Linda");
countedSet.add("Robert");
countedSet.add("Yilin");
countedSet.add("Bruce");

for (String name : countedSet) {
    System.out.printf(
        "%s appears %d times%n",
        name,
        countedSet.count(name));
}

輸出結果

Yilin appears 1 times
Robert appears 1 times
Bruce appears 3 times
Linda appears 2 times
James appears 1 times