core.tut.pori.utils

Class ListUtils

java.lang.Object

core.tut.pori.utils.ListUtils

public final class ListUtils
extends java.lang.Object

Utility class for List utils

Method Summary

Modifier and Type	Method and Description
static java.util.List<java.lang.Integer>	createList(int[] values)
static <T> java.util.List<T>	createList(int n, java.lang.Class<T> cls) Create a new list with n copies of new instances of the given class
static boolean	isEmpty(java.util.Collection<?> items)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

createList

public static <T> java.util.List<T> createList(int n,
                                               java.lang.Class<T> cls)

Create a new list with n copies of new instances of the given class

Parameters:

n -

cls -

Returns:

new list or null if n < 1 or cls == null

Throws:

java.lang.IllegalArgumentException - if the classes cannot be instantiated

isEmpty

public static boolean isEmpty(java.util.Collection<?> items)

Parameters:

items -

Returns:

true if items is null or empty

createList

public static java.util.List<java.lang.Integer> createList(int[] values)

Parameters:

values -

Returns:

new list or null if null or empty array was passed