过滤掉list中两个连续的元素
1.用JAVA8的写法
static String[] filterOptionAndValue(String option, String args[]) {
return IntStream.range(0, args.length)
.filter(i -> i % 2 == 0)
.mapToObj(i -> new AbstractMap.SimpleEntry<>(args[i], args[i + 1]))
.filter(e -> !option.equals(e.getKey()))
.flatMap(e -> Stream.of(e.getKey(), e.getValue()))
.toArray(String[]::new);
}
public static void main(String... env) {
String[] args = {"-o", "opt1", "-k", "secret", "-a", "opt2"};
System.out.println(Arrays.toString(filterOptionAndValue("-s", args)));
}
