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True or false All methods in an abstract class must be abstract?
Wiki User
∙ 14y ago
False. In fact, it is possible to have no abstract methods in an abstract class.
Wiki User
∙ 14y ago
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What is true about true about abstract data type Object of an abstract class type cant be created. We can derive classes from these abstract classes Object of an abstract class t?
True - an instance of an abstract class cannot be created. False - derive (subclass) from a class, not the object (the instance).
Is it true that Abstract class objects never have to be instantiated?
Yes. An Abstract class cannot be instantiated.
The methods cannot have the same name in java true or false?
False. Methods in a class can have the same name as long as they have a different signature. You cannot duplicate method code inside a class but you can always have methods that have the same name but a different signature. Ex: Here I have created two methods in a class that have the same name "sum" but have a different argument types, and return types and hence perfectly allowable in a java class. Public class PolymorphismExample { public int sum(int a, int b){ return a + b; } public double sum (double a, double b){ return a + b; } }
The methods of an object are the operations that can be performed on that objects data true or false?
True.
What is the result of True AND False OR True?
True AND False OR True evaluates to True. IT seems like it does not matter which is evaluated first as: (True AND False) OR True = False OR True = True True AND (False OR True) = True AND True = True But, it does matter as with False AND False OR True: (False AND False) OR True = False OR True = True False AND (False OR True) = False AND True = False and True OR False AND False: (True OR False) AND False = True AND False = False True OR (False AND False) = True OR False = True Evaluated left to right gives a different answer if the operators are reversed (as can be seen above), so AND and OR need an order of evaluation. AND can be replaced by multiply, OR by add, and BODMAS says multiply is evaluated before add; thus AND should be evaluated before OR - the C programming language follows this convention. This makes the original question: True AND False OR True = (True AND False) OR True = False OR True = True
What is true about true about abstract data type Object of an abstract class type cant be created. We can derive classes from these abstract classes Object of an abstract class t?
True - an instance of an abstract class cannot be created. False - derive (subclass) from a class, not the object (the instance).
Is it true that Abstract class objects never have to be instantiated?
Yes. An Abstract class cannot be instantiated.
Is it true or false that scientific methods have two basic types?
true
The methods cannot have the same name in java true or false?
False. Methods in a class can have the same name as long as they have a different signature. You cannot duplicate method code inside a class but you can always have methods that have the same name but a different signature. Ex: Here I have created two methods in a class that have the same name "sum" but have a different argument types, and return types and hence perfectly allowable in a java class. Public class PolymorphismExample { public int sum(int a, int b){ return a + b; } public double sum (double a, double b){ return a + b; } }
The methods of an object are the operations that can be performed on that objects data true or false?
True.
Most sedimentary rocks are readily dated by radiometric methods True False?
False
What Volunteer experience that complements what you do in class true or false?
true
A person that operates a security company without a license has committed a felony true or false?
False
True or False in classful addressing only Class A Class B and Class C addresses are recognized?
True
True or false You can rely solely on induction to prove that your conclusion is correct?
False. There are several methods.
Does the salamander belong to the amphibian class of vertebrates true or false?
True
True or false A Class II ball mount can be used with a Class III receiver hitch?
True
