字符串数组输出

@Test
    public void testA(){

        String[] arr1 = new String[]{"B","A","H","E"};
//        String[] arr1 = DataUtils.sortArray(arr);
        //第一种方式
        for (int i = 0; i < arr1.length; i++) {
            System.out.println(arr1[i]);
        }

        //第二种方式
        StringBuffer sbf = new StringBuffer("");
        for (String str:arr1) {
            sbf.append(str).append(",");
        }
        System.out.println(sbf.toString());
        //第三种方式
        System.out.println(Arrays.toString(arr1));
    }