{"id":26759,"date":"2021-04-30T23:10:11","date_gmt":"2021-05-01T03:10:11","guid":{"rendered":"http:\/\/bangla.salearningschool.com\/recent-posts\/applet-that-uses-a-anonymous-nested-class-to-handle-mouse-events-and-draw-circles-variation-on-third-approach-to-event-handling-using-inner-classes-programming-code-examples-java-j2ee-j2me-mouse\/"},"modified":"2021-04-30T23:10:11","modified_gmt":"2021-05-01T03:10:11","slug":"applet-that-uses-a-anonymous-nested-class-to-handle-mouse-events-and-draw-circles-variation-on-third-approach-to-event-handling-using-inner-classes-programming-code-examples-java-j2ee-j2me-mouse","status":"publish","type":"post","link":"http:\/\/bangla.sitestree.com\/?p=26759","title":{"rendered":"Applet that uses a anonymous nested class to handle mouse events and draw circles. Variation on third approach to event-handling: using inner classes. #Programming Code Examples #Java\/J2EE\/J2ME #Mouse and Keyboard Events"},"content":{"rendered":"<pre>\nimport java.applet.Applet;\nimport java.awt.*;\nimport java.awt.event.*;\n\n\/** Draw circles centered where the user clicks.\n *  Uses anonymous inner classes.\n *  <p>\n**********************\npublic class CircleDrawer4 extends Applet {\n  public void init() {\n    setForeground(Color.blue);\n    addMouseListener\n      (new MouseAdapter() {\n         private int radius = 25;\n\n         public void mousePressed(MouseEvent event) {\n           Graphics g = getGraphics();\n           g.fillOval(event.getX()-radius,\n                      event.getY()-radius,\n                      2*radius,\n                      2*radius);\n         }\n      });\n  }\n}\n*******************\n<\/p><\/pre>\n<p>Note: Brought from our old site: http:\/\/www.salearningschool.com\/example_codes\/ on Jan 2nd, 2017 From: http:\/\/sitestree.com\/?p=10365<br \/> Categories:Programming Code Examples, Java\/J2EE\/J2ME, Mouse and Keyboard Events<br \/>Tags:Java\/J2EE\/J2MEMouse and Keyboard Events<br \/> Post Data:2017-01-02 16:04:35<\/p>\n<p>\t\tShop Online: <a href='https:\/\/www.ShopForSoul.com\/' target='new' rel=\"noopener\">https:\/\/www.ShopForSoul.com\/<\/a><br \/>\n\t\t(Big Data, Cloud, Security, Machine Learning): Courses: <a href='http:\/\/Training.SitesTree.com' target='new' rel=\"noopener\"> http:\/\/Training.SitesTree.com<\/a><br \/>\n\t\tIn Bengali: <a href='http:\/\/Bangla.SaLearningSchool.com' target='new' rel=\"noopener\">http:\/\/Bangla.SaLearningSchool.com<\/a><br \/>\n\t\t<a href='http:\/\/SitesTree.com' target='new' rel=\"noopener\">http:\/\/SitesTree.com<\/a><br \/>\n\t\t8112223 Canada Inc.\/JustEtc: <a href='http:\/\/JustEtc.net' target='new' rel=\"noopener\">http:\/\/JustEtc.net (Software\/Web\/Mobile\/Big-Data\/Machine Learning) <\/a><br \/>\n\t\tShop Online: <a href='https:\/\/www.ShopForSoul.com'> https:\/\/www.ShopForSoul.com\/<\/a><br \/>\n\t\tMedium: <a href='https:\/\/medium.com\/@SayedAhmedCanada' target='new' rel=\"noopener\"> https:\/\/medium.com\/@SayedAhmedCanada <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>import java.applet.Applet; import java.awt.*; import java.awt.event.*; \/** Draw circles centered where the user clicks. * Uses anonymous inner classes. * ********************** public class CircleDrawer4 extends Applet { public void init() { setForeground(Color.blue); addMouseListener (new MouseAdapter() { private int radius = 25; public void mousePressed(MouseEvent event) { Graphics g = getGraphics(); g.fillOval(event.getX()-radius, event.getY()-radius, 2*radius, 2*radius); } &hellip; <\/p>\n<p><a class=\"more-link btn\" href=\"http:\/\/bangla.sitestree.com\/?p=26759\">Continue reading<\/a><\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1917],"tags":[],"class_list":["post-26759","post","type-post","status-publish","format-standard","hentry","category-fromsitestree-com","item-wrap"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":10387,"url":"http:\/\/bangla.sitestree.com\/?p=10387","url_meta":{"origin":26759,"position":0},"title":"Applet that uses a anonymous nested class to handle mouse events and draw circles. Variation on third approach to event-handling: using inner classes.","author":"","date":"August 27, 2015","format":false,"excerpt":"import java.applet.Applet; import java.awt.*; import java.awt.event.*; \/** Draw circles centered where the user clicks. \u00a0*\u00a0 Uses anonymous inner classes. \u00a0* \u00a0 ********************** public class CircleDrawer4 extends Applet { \u00a0 public void init() { \u00a0\u00a0\u00a0 setForeground(Color.blue); \u00a0\u00a0\u00a0 addMouseListener \u00a0\u00a0\u00a0\u00a0\u00a0 (new MouseAdapter() { \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 private int radius = 25; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 public void\u2026","rel":"","context":"In &quot;Code . Programming Samples . \u09aa\u09cd\u09b0\u09cb\u0997\u09cd\u09b0\u09be\u09ae \u0989\u09a6\u09be\u09b9\u09b0\u09a8&quot;","block_context":{"text":"Code . 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Illustrates third approach to event-handling with listeners: using inner classes.","author":"","date":"August 27, 2015","format":false,"excerpt":"import java.applet.Applet; import java.awt.*; import java.awt.event.*; \/** Draw circles centered where the user clicks. \u00a0*\u00a0 Uses named inner classes. \u00a0* \u00a0 \u00a0****************** public class CircleDrawer3 extends Applet { \u00a0 public void init() { \u00a0\u00a0\u00a0 setForeground(Color.blue); \u00a0\u00a0\u00a0 addMouseListener(new CircleListener()); \u00a0 } \u00a0 private class CircleListener extends MouseAdapter { \u00a0\u00a0\u00a0 private int\u2026","rel":"","context":"In &quot;Code . Programming Samples . \u09aa\u09cd\u09b0\u09cb\u0997\u09cd\u09b0\u09be\u09ae \u0989\u09a6\u09be\u09b9\u09b0\u09a8&quot;","block_context":{"text":"Code . 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Illustrates third approach to event-handling with listeners: using inner classes. #Programming Code Examples #Java\/J2EE\/J2ME #Mouse and Keyboard Events","author":"Author-Check- Article-or-Video","date":"April 30, 2021","format":false,"excerpt":"import java.applet.Applet; import java.awt.*; import java.awt.event.*; \/** Draw circles centered where the user clicks. * Uses named inner classes. * ****************** public class CircleDrawer3 extends Applet { public void init() { setForeground(Color.blue); addMouseListener(new CircleListener()); } private class CircleListener extends MouseAdapter { private int radius = 25; public void mousePressed(MouseEvent event)\u2026","rel":"","context":"In &quot;FromSitesTree.com&quot;","block_context":{"text":"FromSitesTree.com","link":"http:\/\/bangla.sitestree.com\/?cat=1917"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":26860,"url":"http:\/\/bangla.sitestree.com\/?p=26860","url_meta":{"origin":26759,"position":3},"title":"Multithreaded Graphics and Double Buffering #Programming Code Examples #Java\/J2EE\/J2ME #Java Threads","author":"Author-Check- Article-or-Video","date":"May 3, 2021","format":false,"excerpt":"ShipSimulation.java Illustrates the basic approach of multithreaded graphics whereas a thread adjusts parameters affecting the appearance of the graphics and then calls repaint to schedule an update of the display. import java.applet.Applet; import java.awt.*; public class ShipSimulation extends Applet implements Runnable { ... public void run() { Ship s; for(int\u2026","rel":"","context":"In &quot;FromSitesTree.com&quot;","block_context":{"text":"FromSitesTree.com","link":"http:\/\/bangla.sitestree.com\/?cat=1917"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":10297,"url":"http:\/\/bangla.sitestree.com\/?p=10297","url_meta":{"origin":26759,"position":4},"title":"draws a circle wherever mouse was pressed","author":"","date":"August 26, 2015","format":false,"excerpt":"CircleListener.java A subclass of MouseAdapter that draws a circle wherever mouse was pressed. Illustrates first approach to event-handling with listeners: attaching a separate listener *********** import java.applet.Applet; import java.awt.*; import java.awt.event.*; \/** The listener used by CircleDrawer1. Note call \u00a0*\u00a0 to getSource to obtain reference to the applet. \u00a0* \u00a0\u2026","rel":"","context":"In &quot;Code . Programming Samples . \u09aa\u09cd\u09b0\u09cb\u0997\u09cd\u09b0\u09be\u09ae \u0989\u09a6\u09be\u09b9\u09b0\u09a8&quot;","block_context":{"text":"Code . 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