Java Summary - Building Java Programs: A Back to Basics Approach - page 1113

Useful Methods of the Collections Class

Method Description

Searches a sorted list for a given element
value and returns its index

binarySearch(list, value)

Copies all elements from the source list to
the destination list

copy(destinationList, sourceList)

Replaces every element in the given list
with the given value

fill(list, value)

Returns the element with the highest value

max(list)

Returns the element with the lowest value

min(list)

Replaces all occurrences of the old value
with the new value

replaceAll(list, oldValue, newValue)

Reverses the order of the elements in the
given list

reverse(list)

Shifts each element to the right by the given
number of indexes, moving the final elements
to the front

rotate(list, distance)

Rearranges the elements into random order

shuffle(list)

Rearranges the elements into sorted (nonde-
creasing) order

sort(list)

Switches the element values at the given
two indexes

swap(list, index1, index2)

Useful Methods of DrawingPanel Objects

Method Description

Returns a reference to the Graphics object that can be used
to draw onto the panel

getGraphics()

Sets the background color of the panel to the given color (the
default is white)

setBackground(color)