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Rashid [163]
3 years ago
7

Define a public static method named s2f that takes two String arguments, the name of a file and some text. The method creates th

e file and writes the text to it. If all goes well the method returns true. If, however, either of its arguments are null or if there is any problem in creating or writin
Computers and Technology
1 answer:
frez [133]3 years ago
6 0

Answer:

Java solution (because only major programming language that has public static methods)

(import java.io.* before hand)

public static boolean s2f(String fileName, String text){

   try{

       PrintWriter out = new PrintWriter(new File(fileName));

       out.println(text);

       out.close();

       return true;

   }

   catch(Exception e){

       return false;

   }

}

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Answer:

2. <em>A reference of type A can be treated as a reference of type B</em> - False

Base class or its objects are not related to their derived class (or its objects).

Explanation:

class A {

   int a;

   public A() {

       a = 7;

   }

}

class B extends A {

   int b;

   public B() {

       b = 8;

   }

}

///////////////////////////////////////////////////////////////////////////////////////////////////////

1. <em>After the constructor for class B executes, the variable a will have the value 7 </em>- True.

When an object of a derived class is declared, the constructor of base class is called before the constructor of derived class (is called).

3. <em>Both variables a and b are instance variables </em>- True.

Classes can have instance, or member, variables and methods.

4.<em> After the constructor for class B executes, the variable b will have the value 8</em> - True.

When object of class B is declared, its constructor was called, which initialized variable b to 8.

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