public final class DisplayMode extends Object
DisplayMode class encapsulates the bit depth, height, width, and refresh rate of a
GraphicsDevice. The ability to change graphics device's display mode is platform- and configuration-dependent and may not always be available (see
GraphicsDevice.isDisplayChangeSupported() ).
For more information on full-screen exclusive mode API, see the Full-Screen Exclusive Mode API Tutorial.
| Modifier and Type | Field and Description |
|---|---|
static int |
BIT_DEPTH_MULTI
Value of the bit depth if multiple bit depths are supported in this display mode.
|
static int |
REFRESH_RATE_UNKNOWN
Value of the refresh rate if not known.
|
| Constructor and Description |
|---|
DisplayMode(int width, int height, int bitDepth, int refreshRate)
Create a new display mode object with the supplied parameters.
|
| Modifier and Type | Method and Description |
|---|---|
boolean |
equals(DisplayMode
Returns whether the two display modes are equal.
|
boolean |
equals(Object
Indicates whether some other object is "equal to" this one.
|
int |
getBitDepth()
Returns the bit depth of the display, in bits per pixel.
|
int |
getHeight()
Returns the height of the display, in pixels.
|
int |
getRefreshRate()
Returns the refresh rate of the display, in hertz.
|
int |
getWidth()
Returns the width of the display, in pixels.
|
int |
hashCode()
Returns a hash code value for the object.
|
@Native public static final int BIT_DEPTH_MULTI
getBitDepth(),
Constant Field Values
@Native public static final int REFRESH_RATE_UNKNOWN
getRefreshRate(),
Constant Field Values
public DisplayMode(int width,
int height,
int bitDepth,
int refreshRate)
width - the width of the display, in pixels
height - the height of the display, in pixels
bitDepth - the bit depth of the display, in bits per pixel. This can be
BIT_DEPTH_MULTI if multiple bit depths are available.
refreshRate - the refresh rate of the display, in hertz. This can be
REFRESH_RATE_UNKNOWN if the information is not available.
BIT_DEPTH_MULTI,
REFRESH_RATE_UNKNOWN
public int getHeight()
public int getWidth()
public int getBitDepth()
BIT_DEPTH_MULTI if multiple bit depths are supported in this display mode.
BIT_DEPTH_MULTI
public int getRefreshRate()
REFRESH_RATE_UNKNOWN if the information is not available.
REFRESH_RATE_UNKNOWN
public boolean equals(DisplayModedm)
public boolean equals(Objectdm)
The equals method implements an equivalence relation on non-null object references:
x, x.equals(x) should return true. x and y, x.equals(y) should return true if and only if y.equals(x) returns true. x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true. x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified. x, x.equals(null) should return false. The equals method for class Object implements the most discriminating possible equivalence relation on objects; that is, for any non-null reference values x and y, this method returns true if and only if x and y refer to the same object (x == y has the value true).
Note that it is generally necessary to override the hashCode method whenever this method is overridden, so as to maintain the general contract for the hashCode method, which states that equal objects must have equal hash codes.
equals in class
Object
dm - the reference object with which to compare.
true if this object is the same as the obj argument;
false otherwise.
Object.hashCode() ,
HashMap
public int hashCode()
HashMap.
The general contract of hashCode is:
hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application. equals(Object) method, then calling the hashCode method on each of the two objects must produce the same integer result. Object.equals(java.lang.Object) method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables. As much as is reasonably practical, the hashCode method defined by class Object does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the Java™ programming language.)
hashCode in class
Object
Object.equals(java.lang.Object) ,
System.identityHashCode(java.lang.Object)