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Unable to track Unit_Increment for JScrollbar in AdjustmentValueChanged

harishalwala asked
Last Modified: 2012-05-12
We are writing a swing program that has a JScrollbar set for textPane. We would like to adjust the content of the textpane based on the user input on jscrollbar. We would like to capture the mouse click on the arrow down & arrow up so that we can scroll up or down relative content.
We are using Adjustmentlistener and tracking the user input using AdjustmentValueChanged().
following is snippet.
We always get into AdjustmentEvent.TRACK, not to any other case.

Please provide the solution

switch (e.getAdjustmentType())
		case AdjustmentEvent.TRACK:
			type = "Track";
		case AdjustmentEvent.BLOCK_DECREMENT:
			type = "Block Decrement";
		case AdjustmentEvent.BLOCK_INCREMENT:
			type = "Block Increment";
		case AdjustmentEvent.UNIT_DECREMENT:
			type = "Unit Decrement";
		case AdjustmentEvent.UNIT_INCREMENT:
			type = "Unit Increment";

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