如何判断一个数组中是否包含一个字符或字符串

第一种方法：遍历数组

String[] arr1 = {"1","2","3","4","6","7"};

}

第二种方法：先把数组转换成list；再判断contains

String[] arr = {"1","2","3","4","6","7"};List<String> list=Arrays.asList(arr);System.out.println(list.contains("5"));