In this example, we will take Integer wrapper class and sort it in ascending order by using Collections.sort() method.
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
public class SortWrappersExample {
public static void main(String[] args) {
sortWrapperClassObjectsInAsc();
}
private static void sortWrapperClassObjectsInAsc() {
List<Integer> names = new ArrayList<>();
names.add(100);
names.add(20);
names.add(10);
names.add(50);
System.out.println("Before Sorting : " + names);
Collections.sort(names);
System.out.println("After Sorting : " + names);
}
}
Output
Before Sorting : [100, 20, 10, 50]
After Sorting : [10, 20, 50, 100]Free Spring Boot Tutorial - 5 Hours Full Course
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