Syntax error Program to convert Set of Integer to Set of String in Java

Program to convert Set of Integer to Set of String in Java

Let’s say the following is our Set of Integer −

Set<Integer> setInteger = new HashSet<>(Arrays.asList(100, 200, 300, 500, 600, 800, 1000));

Now, let us convert this to Set of String −

Set<String> setStr = setInteger.stream().map(String::valueOf).collect(Collectors.toSet());

Example

Following is the program to convert set of Integer to Set of String in Java −

import java.util.*;
import java.util.stream.*;
import java.util.function.Function;
public class Demo {
   public static void main(String args[]) {
      Set<Integer> setInteger = new HashSet<>(Arrays.asList(100, 200, 300, 500, 600, 800, 1000));
      System.out.println("Set = " + setInteger);
      Set<String> setStr = setInteger.stream().map(String::valueOf).collect(Collectors.toSet());
      System.out.println("New Set (String) = " + setStr);
   }
}

Output

Set = [800, 100, 500, 200, 600, 1000, 300]
New Set (String) = [100, 200, 300, 500, 600, 800, 1000]
Updated on: 2019-09-23T14:00:16+05:30

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