anyMatch(Predicate)、allMatch(Predicate)、noneMatch(Predicate):判斷是否存在、全部滿足、全部不滿足給定條件的元素。 示例代碼: 1 2 3 4 5 6 List<Integer> numbers = Arrays.asList(1,2,3,4,5,6,7,8,9,10); intsum = numbers.stream() .filter(num -> num %2==0) .map(num -> num *2) ...
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