Module java.desktop
Package java.awt

# Interface Adjustable

All Known Implementing Classes:
  `JScrollBar`, `JScrollPane.ScrollBar`, `Scrollbar`, `ScrollPaneAdjustable`

public interface Adjustable
The interface for objects which have an adjustable numeric value contained within a bounded range of values.

## Field Summary

Fields
Modifier and Type
Field
Description
`static final int`
`HORIZONTAL`
Indicates that the `Adjustable` has horizontal orientation.
`static final int`
`NO_ORIENTATION`
Indicates that the `Adjustable` has no orientation.
`static final int`
`VERTICAL`
Indicates that the `Adjustable` has vertical orientation.

## Method Summary

Modifier and Type
Method
Description
`void`
`addAdjustmentListener(AdjustmentListener l)`
Adds a listener to receive adjustment events when the value of the adjustable object changes.
`int`
`getBlockIncrement()`
Gets the block value increment for the adjustable object.
`int`
`getMaximum()`
Gets the maximum value of the adjustable object.
`int`
`getMinimum()`
Gets the minimum value of the adjustable object.
`int`
`getOrientation()`
Gets the orientation of the adjustable object.
`int`
`getUnitIncrement()`
Gets the unit value increment for the adjustable object.
`int`
`getValue()`
Gets the current value of the adjustable object.
`int`
`getVisibleAmount()`
Gets the length of the proportional indicator.
`void`
`removeAdjustmentListener(AdjustmentListener l)`
Removes an adjustment listener.
`void`
`setBlockIncrement(int b)`
Sets the block value increment for the adjustable object.
`void`
`setMaximum(int max)`
Sets the maximum value of the adjustable object.
`void`
`setMinimum(int min)`
Sets the minimum value of the adjustable object.
`void`
`setUnitIncrement(int u)`
Sets the unit value increment for the adjustable object.
`void`
`setValue(int v)`
Sets the current value of the adjustable object.
`void`
`setVisibleAmount(int v)`
Sets the length of the proportional indicator of the adjustable object.

## Field Details

### HORIZONTAL

@Native static final int HORIZONTAL
Indicates that the `Adjustable` has horizontal orientation.

See Also:
  - Constant Field Values

### VERTICAL

@Native static final int VERTICAL
Indicates that the `Adjustable` has vertical orientation.

See Also:
  - Constant Field Values

### NO_ORIENTATION

@Native static final int NO_ORIENTATION
Indicates that the `Adjustable` has no orientation.

See Also:
  - Constant Field Values

## Method Details

### getOrientation

int getOrientation()
Gets the orientation of the adjustable object.

Returns:
  the orientation of the adjustable object; either `HORIZONTAL`, `VERTICAL`, or `NO_ORIENTATION`

### setMinimum

void setMinimum(int min)
Sets the minimum value of the adjustable object.

Parameters:
  `min` - the minimum value

### getMinimum

int getMinimum()
Gets the minimum value of the adjustable object.

Returns:
  the minimum value of the adjustable object

### setMaximum

void setMaximum(int max)
Sets the maximum value of the adjustable object.

Parameters:
  `max` - the maximum value

### getMaximum

int getMaximum()
Gets the maximum value of the adjustable object.

Returns:
  the maximum value of the adjustable object

### setUnitIncrement

void setUnitIncrement(int u)
Sets the unit value increment for the adjustable object.

Parameters:
  `u` - the unit increment

### getUnitIncrement

int getUnitIncrement()
Gets the unit value increment for the adjustable object.

Returns:
  the unit value increment for the adjustable object

### setBlockIncrement

void setBlockIncrement(int b)
Sets the block value increment for the adjustable object.

Parameters:
  `b` - the block increment

### getBlockIncrement

int getBlockIncrement()
Gets the block value increment for the adjustable object.

Returns:
  the block value increment for the adjustable object

### setVisibleAmount

void setVisibleAmount(int v)
Sets the length of the proportional indicator of the adjustable object.

Parameters:
  `v` - the length of the indicator

### getVisibleAmount

int getVisibleAmount()
Gets the length of the proportional indicator.

Returns:
  the length of the proportional indicator

### setValue

void setValue(int v)
Sets the current value of the adjustable object. If the value supplied is less than `minimum` or greater than `maximum` - `visibleAmount`, then one of those values is substituted, as appropriate.

Calling this method does not fire an `AdjustmentEvent`.

Parameters:
  `v` - the current value, between `minimum` and `maximum` - `visibleAmount`

### getValue

int getValue()
Gets the current value of the adjustable object.

Returns:
  the current value of the adjustable object

### addAdjustmentListener

void addAdjustmentListener(AdjustmentListener l)
Adds a listener to receive adjustment events when the value of the adjustable object changes.

Parameters:
  `l` - the listener to receive events
See Also:
  - `AdjustmentEvent`

### removeAdjustmentListener

void removeAdjustmentListener(AdjustmentListener l)
Removes an adjustment listener.

Parameters:
  `l` - the listener being removed
See Also:
  - `AdjustmentEvent`