java几种不同方法查询数组中包括某个值时所用的速度

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public class TestArray {    private String str[] = new String[]{"as", "ss", "fe", "rr", "ty","ff","cc","rt","er","ert","ffew","qq","fet"};    /**     * <p>使用for循环查询数组中是否存在某个值</p>     * time:112067     */    @Test    public void TestArray1() {        long startTime = System.nanoTime();        for (int i = 0; i < str.length; i++) {            if (str[i].equals("fe")) {                System.out.println(str[i] + "\t\t" + i);            }        }        long endTime = System.nanoTime();        long time = endTime - startTime;        System.out.println("time:" + time);    }    /**     * <p>使用set查询数组中是否包括某个值 </p>     * time:63800     */    @Test    public void TestArray2() {        long startTime = System.nanoTime();        Set<String> set = new HashSet<String>(Arrays.asList(str));        boolean b = set.contains("fe");        long endTime = System.nanoTime();        System.out.println(b);        long time = endTime - startTime;        System.out.println("time:" + time);    }    /**     * <p>使用list查询数组中是否包括某个值 ，Arrays.binarySearch()方法只能用于有序数组</p>     * time:44383     */    @Test    public void TestArray3() {        long startTime = System.nanoTime();        List<String> list = new ArrayList<>(Arrays.asList(str));        boolean b = list.contains("fe");        long endTime = System.nanoTime();        System.out.println(b);        long time = endTime - startTime;        System.out.println("time:" + time);    }    /**     * <p>使用Arrays.binarySearch进行查询</p>     * time:22746     */    @Test    public void TestArray4() {        long startTime = System.nanoTime();        int b = Arrays.binarySearch(str, "fe");        long endTime = System.nanoTime();        System.out.println(b);        long time = endTime - startTime;        System.out.println("time:" + time);    }    /**     * <p>使用ArrayUtils.contains()查询数组中的是否包括某个值</p>     * time:4760637     */    @Test    public void TestArray5() {        long startTime = System.nanoTime();        boolean b=  ArrayUtils.contains(str, "fe");        long endTime = System.nanoTime();        System.out.println(b);        long time = endTime - startTime;        System.out.println("time:" + time);    }
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