Teach Yourself Java in 21 Days
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Learn Java
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Day
13 The Java Abstract Windowing Toolkit 237 An AWT Overview................................................................................. 238 The Basic User Interface Components .................................................... 240 Labels ................................................................................................ 241 Buttons .............................................................................................. 242 Checkboxes ........................................................................................ 243 Radio Buttons .................................................................................... 244 Choice Menus ................................................................................... 245 Text Fields ......................................................................................... 247 Panels and Layout ................................................................................... 249 Layout Managers ............................................................................... 249 Insets ................................................................................................. 254 Handling UI Actions and Events ............................................................ 255 Nesting Panels and Components ............................................................ 258 Nested Panels .................................................................................... 258 Events and Nested Panels .................................................................. 258 More UI Components ............................................................................ 259 Text Areas .......................................................................................... 259 Scrolling Lists .................................................................................... 261 Scrollbars and Sliders ......................................................................... 262 Canvases ............................................................................................ 265 More UI Events ...................................................................................... 265 A Complete Example: RGB to HSB Converter ....................................................................... 266 Create the Applet Layout ................................................................... 267 Create the Panel Layout ..................................................................... 267 Define the Subpanels ......................................................................... 269 Handle the Actions ............................................................................ 272 Update the Result .............................................................................. 272 The Complete Source Code ............................................................... 274 Summary ................................................................................................ 277 Q&A ...................................................................................................... 277 Download 5.76 Mb. Do'stlaringiz bilan baham: 
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