{"id":27184,"date":"2021-05-13T23:10:06","date_gmt":"2021-05-14T03:10:06","guid":{"rendered":"http:\/\/bangla.salearningschool.com\/recent-posts\/buggy-counter-applet-java-demonstrates-that-data-shared-by-multiple-threads-is-candidate-for-a-potential-race-condition-programming-code-examples-java-j2ee-j2me-advanced-swing\/"},"modified":"2021-05-13T23:10:06","modified_gmt":"2021-05-14T03:10:06","slug":"buggy-counter-applet-java-demonstrates-that-data-shared-by-multiple-threads-is-candidate-for-a-potential-race-condition-programming-code-examples-java-j2ee-j2me-advanced-swing","status":"publish","type":"post","link":"http:\/\/bangla.sitestree.com\/?p=27184","title":{"rendered":"Buggy Counter Applet.java Demonstrates that data shared by multiple threads is candidate for a potential race condition #Programming Code Examples #Java\/J2EE\/J2ME #Advanced Swing"},"content":{"rendered":"
\nimport java.applet.Applet;\nimport java.awt.*;\n\n\/** Emulates the Counter and Counter2 classes, but this time\n *  from an applet that invokes multiple versions of its own run\n *  method. This version is likely to work correctly\n *  except<\/b> when  an important customer is visiting.\n\npublic class BuggyCounterApplet extends Applet\n                                implements Runnable{\n  private int totalNum = 0;\n  private int loopLimit = 5;\n\n  \/\/ Start method of applet, not the start method of the thread. \n  \/\/ The applet start method is called by the browser after init is\n  \/\/ called. \n  public void start() {\n    Thread t;\n    for(int i=0; i<3; i++) {\n      t = new Thread(this);\n      t.start();\n    }\n  }\n\n  private void pause(double seconds) {\n    try { Thread.sleep(Math.round(1000.0*seconds)); }\n    catch(InterruptedException ie) {}\n  }\n\n  public void run() {\n    int currentNum = totalNum;\n    System.out.println("Setting currentNum to " + currentNum);\n    totalNum = totalNum + 1;\n    for(int i=0; i<looplimit ; i++) {\n      System.out.println("Counter " + currentNum + ": " + i);\n      pause(Math.random());\n    }\n  }\n}\n<\/pre>\n
Note: Brought from our old site: http:\/\/www.salearningschool.com\/example_codes\/ on Jan 2nd, 2017 From: http:\/\/sitestree.com\/?p=10295
 Categories:Programming Code Examples, Java\/J2EE\/J2ME, Advanced Swing
Tags:Java\/J2EE\/J2MEAdvanced Swing
 Post Data:2017-01-02 16:04:31<\/p>\n
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import java.applet.Applet; import java.awt.*; \/** Emulates the Counter and Counter2 classes, but this time * from an applet that invokes multiple versions of its own run * method. This version is likely to work correctly * except when an important customer is visiting. public class BuggyCounterApplet extends Applet implements Runnable{ private int totalNum = 0; … <\/p>\n
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This version is likely to work correctly \u00a0*\u00a0 except when\u00a0 an important customer is visiting. public class BuggyCounterApplet extends Applet \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 implements\u2026","rel":"","context":"In "Code . Programming Samples . \u09aa\u09cd\u09b0\u09cb\u0997\u09cd\u09b0\u09be\u09ae \u0989\u09a6\u09be\u09b9\u09b0\u09a8"","block_context":{"text":"Code . 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The QueryCollection obtains the strings \u00a0*\u00a0 by means of a serialized object input stream \u00a0*\u00a0 connected to the QueryGenerator servlet. \u00a0* \u00a0 \u00a0*\u00a0\u2026","rel":"","context":"In "Code . Programming Samples . \u09aa\u09cd\u09b0\u09cb\u0997\u09cd\u09b0\u09be\u09ae \u0989\u09a6\u09be\u09b9\u09b0\u09a8"","block_context":{"text":"Code . 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