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18.Can an object file be written with a text editor? Explain.
19.Why does an object read from an object file have to be type cast back into its
original class?Programming Warm-Up Exercises
1.Declare three constructors for the class MyClass.
2.Fill in the blanks in the documentation in the following code segment.
public classMyName extendsYourName
{
intmyField; // myField is an ______field.publicMyName(intmyField) // _______ with a parameter
// that shadows the _______ ______
{
this.myField = myField; // Assign the ___________ to
// the _________ field.
}
}- a.How does the syntax of a constructor differ from that of a method?
b.How is a constructor invoked?
c. How many constructors can a class have?
d.What is the signature of a method?
e.What happens if a class does not have a constructor?
f. What must be the first statement in every constructor? - a.Declare a publicclass SomeClass.
b.Write the heading for a publicclass method someMethod.
c. Write the heading for an integer class method someMethodthat should be ac-
cessible to the classes in the package but not to derived classes.
d.Write the heading for an integer class method someMethodthat should be ac-
cessible only to other methods in the class.
e.Write the heading for a character class method someMethodthat should be ac-
cessible to classes in the package and any derived classes. - a.Write the heading for a public method someMethod.
b.Write the heading for an integer method someMethodthat should be accessi-
ble to the classes in the package but not to derived classes.
c. Write the heading for an integer method someMethodthat should be accessi-
ble only to other methods in the class.
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