{"id":10528,"date":"2015-08-29T09:48:33","date_gmt":"2015-08-29T13:48:33","guid":{"rendered":"http:\/\/bangla.salearningschool.com\/?p=10528"},"modified":"2015-08-24T10:35:29","modified_gmt":"2015-08-24T14:35:29","slug":"accesses-instance-variables-in-a-ship-object","status":"publish","type":"post","link":"http:\/\/bangla.sitestree.com\/?p=10528","title":{"rendered":"Accesses instance variables in a Ship object."},"content":{"rendered":"<pre>Test1.java Accesses instance variables in a Ship object. \r\n********************************************************\r\n\r\n\/\/ Create a class with five instance variables (fields):\r\n\/\/ x, y, speed, direction, and name. Note that Ship1 is \r\n\/\/ not declared \"public\", so it can be in the same file as\r\n\/\/ Test1. A Java file can only contain one \"public\" class\r\n\/\/ definition.\r\n\r\nclass Ship1 {\r\n\u00a0 public double x, y, speed, direction;\r\n\u00a0 public String name;\r\n}\r\n\r\n\/\/ The \"driver\" class containing \"main\".\r\n\r\npublic class Test1 {\r\n\u00a0 public static void main(String[] args) {\r\n\u00a0\u00a0\u00a0 Ship1 s1 = new Ship1();\r\n\u00a0\u00a0\u00a0 s1.x = 0.0;\r\n\u00a0\u00a0\u00a0 s1.y = 0.0;\r\n\u00a0\u00a0\u00a0 s1.speed = 1.0;\r\n\u00a0\u00a0\u00a0 s1.direction = 0.0;\u00a0\u00a0 \/\/ East\r\n\u00a0\u00a0\u00a0 s1.name = \"Ship1\";\r\n\u00a0\u00a0\u00a0 Ship1 s2 = new Ship1();\r\n\u00a0\u00a0\u00a0 s2.x = 0.0;\r\n\u00a0\u00a0\u00a0 s2.y = 0.0;\r\n\u00a0\u00a0\u00a0 s2.speed = 2.0;\r\n\u00a0\u00a0\u00a0 s2.direction = 135.0; \/\/ Northwest\r\n\u00a0\u00a0\u00a0 s2.name = \"Ship2\";\r\n\u00a0\u00a0\u00a0 s1.x = s1.x + s1.speed\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * Math.cos(s1.direction * Math.PI \/ 180.0);\r\n\u00a0\u00a0\u00a0 s1.y = s1.y + s1.speed\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * Math.sin(s1.direction * Math.PI \/ 180.0);\r\n\u00a0\u00a0\u00a0 s2.x = s2.x + s2.speed\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * Math.cos(s2.direction * Math.PI \/ 180.0);\r\n\u00a0\u00a0\u00a0 s2.y = s2.y + s2.speed\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * Math.sin(s2.direction * Math.PI \/ 180.0);\r\n\u00a0\u00a0\u00a0 System.out.println(s1.name + \" is at (\"\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 + s1.x + \",\" + s1.y + \").\");\r\n\u00a0\u00a0\u00a0 System.out.println(s2.name + \" is at (\"\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 + s2.x + \",\" + s2.y + \").\");\r\n\u00a0 }\r\n}\r\n**********************<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Test1.java Accesses instance variables in a Ship object. ******************************************************** \/\/ Create a class with five instance variables (fields): \/\/ x, y, speed, direction, and name. Note that Ship1 is \/\/ not declared &#8220;public&#8221;, so it can be in the same file as \/\/ Test1. A Java file can only contain one &#8220;public&#8221; class \/\/ definition. &hellip; <\/p>\n<p><a class=\"more-link btn\" href=\"http:\/\/bangla.sitestree.com\/?p=10528\">Continue reading<\/a><\/p>\n","protected":false},"author":130,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1417,1424],"tags":[706,308,285],"class_list":["post-10528","post","type-post","status-publish","format-standard","hentry","category-code-programming-samples--","category-javaj2eej2me","tag-code","tag-java","tag-285","item-wrap"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":26557,"url":"http:\/\/bangla.sitestree.com\/?p=26557","url_meta":{"origin":10528,"position":0},"title":"Accesses instance variables in a Ship object. #Programming Code Examples #Java\/J2EE\/J2ME #Object Oriented Programming","author":"Author-Check- Article-or-Video","date":"April 28, 2021","format":false,"excerpt":"Test1.java Accesses instance variables in a Ship object. ******************************************************** \/\/ Create a class with five instance variables (fields): \/\/ x, y, speed, direction, and name. Note that Ship1 is \/\/ not declared \"public\", so it can be in the same file as \/\/ Test1. A Java file can only contain\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":10303,"url":"http:\/\/bangla.sitestree.com\/?p=10303","url_meta":{"origin":10528,"position":1},"title":"Accesses methods in a Ship2 object","author":"","date":"August 26, 2015","format":false,"excerpt":"********************************************* Test2.java Accesses methods in a Ship2 object ********************************************* \/\/ Give the ship public move and printLocation methods. class Ship2 { \u00a0 public double x=0.0, y=0.0, speed=1.0, direction=0.0; \u00a0 public String name = \"UnnamedShip\"; \u00a0 private double degreesToRadians(double degrees) { \u00a0\u00a0\u00a0 return(degrees * Math.PI \/ 180.0); \u00a0 } \u00a0 public\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 . Programming Samples . \u09aa\u09cd\u09b0\u09cb\u0997\u09cd\u09b0\u09be\u09ae \u0989\u09a6\u09be\u09b9\u09b0\u09a8","link":"http:\/\/bangla.sitestree.com\/?cat=1417"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":10306,"url":"http:\/\/bangla.sitestree.com\/?p=10306","url_meta":{"origin":10528,"position":2},"title":"Using the this reference in class Ship3","author":"","date":"August 26, 2015","format":false,"excerpt":"\/.\/.\/.\/.\/.\/.\/.\/.\/.\/. \/\/ Give Ship3 a constructor to let the instance variables \/\/ be specified when the object is created. \/.\/.\/.\/.\/.\/.\/.\/.\/.\/ class Ship3 { \u00a0 public double x, y, speed, direction; \u00a0 public String name; \u00a0 public Ship3(double x, double y, double speed, \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 double direction, String name) { \u00a0\u00a0\u00a0 this.x\u2026","rel":"","context":"In &quot;Code . 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Programming Samples . \u09aa\u09cd\u09b0\u09cb\u0997\u09cd\u09b0\u09be\u09ae \u0989\u09a6\u09be\u09b9\u09b0\u09a8","link":"http:\/\/bangla.sitestree.com\/?cat=1417"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":27245,"url":"http:\/\/bangla.sitestree.com\/?p=27245","url_meta":{"origin":10528,"position":3},"title":"Accesses methods in a Ship2 object #Programming Code Examples #Java\/J2EE\/J2ME #Advanced Swing","author":"Author-Check- Article-or-Video","date":"May 15, 2021","format":false,"excerpt":"********************************************* Test2.java Accesses methods in a Ship2 object ********************************************* \/\/ Give the ship public move and printLocation methods. class Ship2 { public double x=0.0, y=0.0, speed=1.0, direction=0.0; public String name = \"UnnamedShip\"; private double degreesToRadians(double degrees) { return(degrees * Math.PI \/ 180.0); } public void move() { double angle =\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":27247,"url":"http:\/\/bangla.sitestree.com\/?p=27247","url_meta":{"origin":10528,"position":4},"title":"Using the this reference in class Ship3 #Programming Code Examples #Java\/J2EE\/J2ME #Advanced Swing","author":"Author-Check- Article-or-Video","date":"May 15, 2021","format":false,"excerpt":"\/.\/.\/.\/.\/.\/.\/.\/.\/.\/. \/\/ Give Ship3 a constructor to let the instance variables \/\/ be specified when the object is created. \/.\/.\/.\/.\/.\/.\/.\/.\/.\/ class Ship3 { public double x, y, speed, direction; public String name; public Ship3(double x, double y, double speed, double direction, String name) { this.x = x; \/\/ \"this\" differentiates\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":10530,"url":"http:\/\/bangla.sitestree.com\/?p=10530","url_meta":{"origin":10528,"position":5},"title":"Demonstrates overloading methods in class Ship4","author":"","date":"August 29, 2015","format":false,"excerpt":"********************* class Ship4 { \u00a0 public double x=0.0, y=0.0, speed=1.0, direction=0.0; \u00a0 public String name; \u00a0 \/\/ This constructor takes the parameters explicitly. \u00a0 \u00a0 public Ship4(double x, double y, double speed, \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 double direction, String name) { \u00a0\u00a0\u00a0 this.x = x; \u00a0\u00a0\u00a0 this.y = y; \u00a0\u00a0\u00a0 this.speed = speed;\u2026","rel":"","context":"In &quot;Code . 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