學習筆記專區

package tw.xxx.myfirstproject.game;

import java.util.*;

public class GamePolymorphismDetial {

    static Set tokenSet(String line){//輸入進一個字串line

       String[] tokens = line.split(" ");//用空格區分line中的每個元素，將元素加入陣列tokens

       return new HashSet(Arrays.asList(tokens));}//把陣列元素存進set中，因為set有不重複的特性，所以重覆者被刪

       //asList(T... a)

       //Returns a fixed-size list backed by the specified array.(list也是一個collection)

       //HashSet(Collection<? extends E> c)

       //Constructs a new set containing the elements in the specified collection.

    public static void main(String[] args) {

    System.out.println(tokenSet("the The the III I I iii"));

    }

}

[the, The, III, iii, I]