This Tutorial will teach you how to make a Autocomplete ComboBox using Java. In order to do the AutoComplete ComboBox First you must download the jar file swingx-all-1.6.4.jar. just go to the google and type swingx-all-1.6.4.jar. after that when the JFrame is Loaded Combobox loaded with AutoComplete. paste the code inside the Constructor. public Autocom() { initComponents(); AutoCompleteDecorator.decorate(Items); } i …