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This 6 page Class Notes was uploaded by Sterling Schmeler on Monday October 26, 2015. The Class Notes belongs to CS0007 at University of Pittsburgh taught by Staff in Fall. Since its upload, it has received 61 views. For similar materials see /class/229389/cs0007-university-of-pittsburgh in ComputerScienence at University of Pittsburgh.
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Date Created: 10/26/15
File system example import javaio Class fs public static void main String arguments throwsjavaioOException PrintWriter filehandler new PrintWriternew FieWriterquotheotxtquot filehandlerprintlnarguments0 filehandlerclose class fs public static void main String arguments try PrintWriter filehandler new PrintWriternew FieWriterquotheotxtquot filehandlerprintlnarguments0 filehandlerclose catch IOException e SystemoutprintlnquotOoop promblem with the filesystem e Java39s implicit constructor invocation Quoting from Section 885 of the Java Language Specification blah blah If a constructor body does not begin with an explicit constructor invocation and the constructor being declared is not part of the primordial class Object then the constructor body is implicitly assumed by the compiler to begin with a superclass constructor invocation quotsuper an invocation of the constructor of its direct superclass that takes no arguments httpjavasun comdocsbooksjlssecondeditionhtmIclassesdoc html78435 lest like queshons inheriter What is the difference between superclass amp subclass Which keyword is used to inherit a class 0 When can subclasses not access superclass members 0 Which class does begin Java class hierarchy 0 Object class is a superclass of all other classes TrueFalse httptathyacommyBIogpostid8 lest like queshons inheritance Java supports multiple inheritance TrueFalse Which method is used to call the constructors of the superclass from the subclass 0 Which is used to execute any method of the superclass from the subclass Does a class inherit the constructors of it39s super class
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