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Program to convert List of String to List of Integer in Java
Here’s our List of String −
List<String> listString = Arrays.asList("25", "50", "75", "100", "125", "150");
Now, convert the list of string to list of integer −
List<Integer> listInteger = listString.stream().map(Integer::parseInt).collect(Collectors.toList());
Following is the program to convert List of String to List of Integer in Java −
Example
import java.util.*; import java.util.stream.*; import java.util.function.*; public class Demo { public static void main(String[] args) { List<String> listString = Arrays.asList("25", "50", "75", "100", "125", "150"); System.out.println("List of String = " + listString); List<Integer> listInteger = listString.stream().map(Integer::parseInt) .collect(Collectors.toList()); System.out.println("List of Integer (converted from List of String) = " + listInteger); } }
Output
List of String = [25, 50, 75, 100, 125, 150] List of Integer (converted from List of String) = [25, 50, 75, 100, 125, 150]
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