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StringJoiner merge() method in Java 8
The merge() method of the StringJoiner class in Java 8 is used to merge the contents of the StringJoiner str, which is passed as a parameter. The content gets added as the next element.
The syntax is as follows:
public StringJoiner merge(StringJoiner str)
Here, str is the StringJoiner content to be merged.
To work with the StringJoiner in Java 8, import the following package:
import java.util.StringJoiner;
The following is an example to implement StringJoiner merge() method in Java:
Example
import java.util.StringJoiner; public class Demo { public static void main(String[] args) { // StringJoiner 1 StringJoiner strJoin1 = new StringJoiner(" "); strJoin1.add("Asia"); strJoin1.add("is"); strJoin1.add("a"); strJoin1.add("continent"); strJoin1.add("and"); System.out.println("StringJoiner 1 = "+strJoin1.toString()); // StringJoiner 2 StringJoiner strJoin2 = new StringJoiner(" "); strJoin2.add("Tokyo"); strJoin2.add("is"); strJoin2.add("a"); strJoin2.add("city"); System.out.println("StringJoiner 2 = "+strJoin2.toString()); StringJoiner mergedStr = strJoin1.merge(strJoin2); System.out.println("New StringJoiner (strJoin1 + strJoin2) = " + mergedStr); } }
Output
StringJoiner 1 = Asia is a continent and StringJoiner 2 = Tokyo is a city New StringJoiner (strJoin1 + strJoin2) = Asia is a continent and Tokyo is a city
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