How to remove empty values while split a string in Java

How to remove empty values while split in Java:

Suppose a string is given and its words are separated by a separator, including the empty values. We need to write a program to remove the empty values of the string and put the words in an array.

Let’s say the string is:

"one,two,,three,,four,,, ,"

In the above string, there are empty words, and each word is separated by a comma.

Now, let’s try to get the non-empty words in a separate array in different ways:

By using stream:

We can use the split method to get the words in an array and the stream API can be used to filter out the non-empty words of that array. The program will use the following steps:

Use the split method to get an array of the string words.
Convert that array to a stream with the Arrays.stream method.
Remove all empty values of the stream by using the filter method.
Convert the stream back to an array by using the toArray method.

Below is the complete program:

import java.util.Arrays;

public class Example1 {
    public static void main(String[] args) {
        String givenString = "one,two,,three,,four,,  , ,";

        String[] resultArray = Arrays.stream(givenString.split(",")).filter(e -> e.trim().length() > 0)
                .toArray(String[]::new);

        System.out.println(Arrays.toString(resultArray));
    }
}

Download it on Github

If you run the above program, it will give the following result:

[one, two, three, four]

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How to remove empty values while split a string in Java

How to remove empty values while split in Java:

By using stream:

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