Multiple-Copy Collections : List « SWT « Java Tutorial

1. Java Tutorial
2. SWT
3. List

The nCopies() method of Collections is similar to using fill(), then copy(), with a List:

public static List nCopies(int n, Object element)

This creates a List with the same element repeated throughout the list.

nCopies() method creates an immutable collection.

import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
public class MainClass {
  public static void main(String[] a) {
    List list = new LinkedList(Collections.nCopies(10, null));
    System.out.println(list);
  }
}

[null, null, null, null, null, null, null, null, null, null]

17.23.List
	17.23.1.	Introducing List and List Styles
	17.23.2.	Create a single-selection list and add items
	17.23.3.	List Item Single Selection
	17.23.4.	Create a multiple-selection list
	17.23.5.	Create a List with a vertical ScrollBar and Add a bunch of items to it
	17.23.6.	Setting Items: Add the items all at once
	17.23.7.	Make List Scroll to the bottom
	17.23.8.	Show the selection value by using ScrollBar
	17.23.9.	Select a range
	17.23.10.	Copying Lists: public static void copy(List dest, List src)
	17.23.11.	Multiple-Copy Collections
	17.23.12.	Reversing Lists: public static void reverse(List list)
	17.23.13.	public static void fill(List list, Object element): method copies the same object reference to every element of the list
	17.23.14.	Shuffling Lists: randomly reorder the elements of a list
	17.23.15.	Sorting Lists: reordering the elements of a List