java 英文逗号隔开字符串转数组

To convert a comma-separated string into an array in Java, you can use the `split()` method from the `String` class. Here's an example:

String str = "apple,banana,orange";
String[] arr = str.split(",");

// Printing the elements of the array
for (String item : arr) {
    System.out.println(item);
}

Output:

apple
banana
orange

In this example, the `split(",")` method is used to split the string `str` at each occurrence of a comma (`,`) and returns an array of substrings.