question: private void init ( ) { Box mainVertical = Box . createVerticalBox ( ) ; fillFieldValues ( ) ; weightSizeMaxSlider . setMajorTickSpacing ( 25 ) ; weightSizeMaxSlider . setPaintTicks ( true ) ; weightSizeMaxSlider . setPaintLabels ( true ) ; weightSizeMinSlider . setMajorTickSpacing ( 25 ) ; weightSizeMinSlider . setPaintTicks ( true ) ; weightSizeMinSlider . setPaintLabels ( true ) ; addActionListeners ( ) ; colorPanel . add ( cbChangeColor ) ; colorIndicator . setSize ( 20 , 20 ) ; colorPanel . add ( colorIndicator ) ; colorPanel . add ( changeColorButton ) ; setIndicatorColor ( ) ; LabelledItemPanel guiPanel = new LabelledItemPanel ( ) ; guiPanel . addItem ( "Color:" , colorPanel ) ; guiPanel . addItem ( "Weight size max" , weightSizeMaxSlider ) ; guiPanel . addItem ( "Weight size min" , weightSizeMinSlider ) ; mainVertical . add ( guiPanel ) ; mainVertical . add ( new JSeparator ( JSeparator . HORIZONTAL ) ) ; LabelledItemPanel miscPanel = new LabelledItemPanel ( ) ; miscPanel . addItem ( "Network time step" , timeStepField ) ; miscPanel . addItem ( "Synapse visibility threshold" , tfSynapseVisibilityThreshold ) ; nudgeAmountField . setColumns ( 3 ) ; miscPanel . addItem ( "Nudge Amount" , nudgeAmountField ) ; miscPanel . addItem ( "Wand radius" , wandRadiusField ) ; miscPanel . add ( new JSeparator ( JSeparator . HORIZONTAL ) ) ; miscPanel . addItem ( "Use Subsampling for large neuron groups" , cbUseSubSampling ) ; miscPanel . addItem ( "Number of Subsamples / Subsampling Threshold" , tfNumSubSamples ) ; updateSubSamplingStuff ( ) ; mainVertical . add ( miscPanel ) ; add ( mainVertical ) ; }
target:  This method initializes the components on the panel.