Convert List to String Java 8

Here we will see how to convert List to String comma separated values using Java 8.

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List to String Comma Separated:
1. List to String using String.join():
2. List to String comma separate using Streams:
3. List to comma separate strings using Java 7:
References:
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List to String Comma Separated:

Lets take a simple java List, filled with Strings of elements.

1. List to String using String.join():

List countries = Arrays.asList("Java","Spring","Hibernate","Python","C"); String countrieswithComma = String.join(",",countries); System.out.println(countrieswithComma);

Output:

Java,Spring,Hibernate,Python,C

2. List to String comma separate using Streams:

Java 8 streams are beneficial to collect data in different formats.

List countries = Arrays.asList("Java","Spring","Hibernate","Python","C"); String countrieswithComma = countries.stream().collect(Collectors.joining(",")); System.out.println(countrieswithComma);

Output:

Java,Spring,Hibernate,Python,C

3. List to comma separate strings using Java 7:

If you are using legacy java version (before Java 8), you can even convert the list to string comma separate values by using the following logic.

List countries = Arrays.asList("Java","Spring","Hibernate","Python","C"); StringBuffer buffer = new StringBuffer(); for (String country : countries){ buffer.append(country).append(","); } buffer.deleteCharAt(buffer.lastIndexOf(",")); // To remove leading comma countrieswithComma= buffer.toString(); System.out.println(countrieswithComma);

Output:

Java,Spring,Hibernate,Python,C

References:

Java 8 Streams
Java 8 Stream to List

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Convert List to String Java 8

List to String Comma Separated:

1. List to String using String.join():

2. List to String comma separate using Streams:

3. List to comma separate strings using Java 7:

References:

Related Posts

Share a word.

Leave A Comment Cancel reply

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