ListUtils (drafts API)

java.lang.Object

it.unimi.di.prog2.h23.ListUtils

public class ListUtils extends Object

A class providing some utility methods for lists.

Nested Class Summary

Nested Classes

Modifier and Type

Class

Description

static class

ListUtils.AbsoluteValueIntBox

A subtype of ListUtils.PositiveIntBox that can be created from negative ints.

static class

ListUtils.PositiveIntBox

A box containing a positive integer.
Constructor Summary

Constructors

Modifier

Constructor

Description

private

ListUtils()

.
Method Summary

Modifier and Type

Method

Description

static <T extends Comparable<T>> T

almostRightMax(List<T> lst)

Returns the maximum element in a list.

static void

main(String[] args)

A method to test the code in this class

static <T extends Comparable<? super T>> T

max(List<T> lst)

Returns the maximum element in a list.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- ListUtils
  
  private ListUtils()
  
  .
Method Details
- almostRightMax
  
  public static <T extends Comparable<T>> T almostRightMax(List<T> lst)
  
  Returns the maximum element in a list.
  This implementation has an issue with subclasses.
  
  Type Parameters:
  
  T - the type of the elements in the list.
  
  Parameters:
  
  lst - the list.
  
  Returns:
  
  the maximum element in lst.
  
  Throws:
  
  NullPointerException - if lst is null.
- max
  
  public static <T extends Comparable<? super T>> T max(List<T> lst)
  
  Returns the maximum element in a list.
  
  Type Parameters:
  
  T - the type of the elements in the list.
  
  Parameters:
  
  lst - the list.
  
  Returns:
  
  the maximum element in lst.
  
  Throws:
  
  NullPointerException - if lst is null.
- main
  
  public static void main(String[] args)
  
  A method to test the code in this class
  
  Parameters:
  
  args - unused.