programming in java

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Recursion in java
  • Recursion in java

  • Exam (elaborations) • 10 pages • 2023
  • Available in package deal
  • Recursion 1. What is the output of the following program? public class Exercise1 { public static void main(String[] args) { cheers(3); } public static void cheers( int n) { if (n == 1) { Sln("Hurray"); } else { Sln("Hip"); cheers(n – 1); } } }
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java File I/O
  • java File I/O

  • Exam (elaborations) • 11 pages • 2023
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  • java File I/O 1. A stream is a flow of data. From where and to where does the data flow in an input stream? From where and to where does the data flow in an output stream? 2. What is the difference between a binary file and a text file? 3. What kind of exception might be thrown by the following, and what would it exception is thrown? PrintWriter outputStream = new PrintWriter( new FileOutputStream("")); 4. Does the class PrintWriter have a constructor that accepts a string (for a fi le ...
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java Exception  Handling
  • java Exception Handling

  • Exam (elaborations) • 19 pages • 2023
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  • java Exception Handling
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exam(elaborations)Polymorphism and Abstract Classes in java
  • exam(elaborations)Polymorphism and Abstract Classes in java

  • Exam (elaborations) • 7 pages • 2023
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  • 1. Explain the difference between the terms late binding and polymorphism . 2 . Suppose you modify the definitions of the class Sale ( Display 8.1 ) by adding the modifier final to the definition of the method bill . How would that change the output of the program in Display 8.3 ? 3. Would it be legal to add the following method definition to the class DiscountSale ? public static boolean isAGoodBuy(Sale theSale) { return (theSDiscount() > 20); }
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Inheritance in java programming
  • Inheritance in java programming

  • Exam (elaborations) • 12 pages • 2023
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  • Inheritance 1. Suppose the class named DiscountSale is a derived class of a class called Sale . Suppose the class Sale has instance variables named price and numberOfItems . Will an object of the class DiscountSale also have instance variables named price and numberOfItems ? 2. Suppose the class named DiscountSale is a derived class of a class called Sale , and suppose the class Sale has public methods named getTotal and getTax . Will an object of the class DiscountSale have methods named...
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Exam (elaborations) programming in java
  • Exam (elaborations) programming in java

  • Exam (elaborations) • 21 pages • 2023
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  • Exam (elaborations) programming in java
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