在 Java 中拆分逗号分隔字符串的三种方法

//Example 1
public class UseIndexofAndSubString {
	public static void main(String[] args) {
		// Specified string to search comma from and then split it in a substring
		String java = "Java, is, a, fun, programming, language!";
		String comma = ","; // To search ',' from the first occurrence of the specified string
		// Our starting index is 0 since we do not want to miss any occurrence in the
		// given string value while the end index is also initialized
		int start = 0, end;
		// Now the indexOf will find the specified character which in this case is a
		// comma (,)
		// Note: The second parameter (start) determines that the method starts from the
		// beginning, otherwise it will
		// Basically, we will be able to locate the occurrence of (comma) from where we
		// want it to be split
		end = java.indexOf(comma, start);
		// If the loop does not find (comma)
		// We already mentioned the return type of indexOf in case if the given char
		// never occurred, right? That is what the loop searches for!
		while (end != -1) {
			//// Substring will give us each occurrence until the loop is unable to find
			//// comma
			String split = java.substring(start, end);
			System.out.println(split); // print each sub string from the given string
			// Then add 1 to the end index of the first occurrence (search more until the
			// condition is set false)
			start = end + 1;
			end = java.indexOf(comma, start);
		}
		// Since there is no comma after the last index of the string (language!), the
		// loop could not find the end index; thus, it never printed the last word!
		// We will get the last instance of the given string using substring and pass
		// start position (Starts from L and ends at the !)
		String split = java.substring(start);
		// Brave, you got it all right!
		System.out.println(split);
	}
}

Java
is
a
fun
programming
language!

String java = "Using$ another$ Character$ to$ split$ from!";
String sepFrom ="$"; //To search from the specified string

Using
another
Character
to
split
from!

List<String> ArraySting = Arrays.asList(IwillBeSplit.split(","));

//Example 3 using Lists' String with Split Method to Split String From a Given demarcation
import java.util.Arrays;
import java.util.List;

public class UseStingListWithSplitMthd {
	public static void main(String[] args) {
		String IwillBeSplit = "There,are,seven,days,!&#^*,in,a,weak";
		// List is an interface in Java
		List<String> ArraySting = Arrays.asList(IwillBeSplit.split(","));
		// Using for each loop
		ArraySting.forEach(System.out::println);
	}
}

There
are
seven
days
!&#^*
in
a
weak

String IwillBeSplit = "You%replaced%the%comma%with%a%percentage";
List<String> ArraySting = Arrays.asList(IwillBeSplit.split("%"));

You
replaced
the
comma
with
a
percentage

//Example 2 using ArrayLists and split method
import java.util.ArrayList;
import java.util.Arrays;

public class ArrayListSplitMethod {
	public static void main(String[] args) {
		String ALstr = "So,many,ways,to,separate,a,string,from,a,specified,position";

		ArrayList<String> Spliter = new ArrayList<>(Arrays.asList(ALstr.split(",")));
		Spliter.forEach(System.out::println);
	}
}

So
many
ways
to
separate
a
string
from
a
specified
position