Question: Question 19 1 pts A type cast using reference type is a promise to the compiler that the dynamic type of the expression will conform

Question 19 1 pts

A type cast using reference type is a promise to the compiler that the dynamic type of the expression will conform to the type specified in the cast. What happens if this promise is broken?

A syntax error will occur.

The dynamic type will be changed to match the type specified in the cast.

A ClassCastException will be thrown.

The JRE will request a replacement type from the user.

The type cast will be ignored.

Flag this Question

Question 20 1 pts

How many different classes can a sub class derive from, using the keyword extends?

A sub class can extend directly from mutliple super classes.

exactly one class

any number of classes as long as an import statement is used

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!

Question 111 pts Which Java keyword can be used to access the super class version of an overridden method from within the sub class? override super new this extends Flag this Question Question 121...

Question 160.05 pts What determines which version of an overloadedmethod is executed? the static type of the variable that acts as the 'qualifier' in the method call the dynamic type of the variable...

Question 30 2 pts What type of parameter to a method will have a value automatically supplied if you do not explicitly send one as an argument? default parameter value parameter actual parameter...

Question 1 If A "Is-A" B, what else can we say about the relationship between class A and class B? 1 Class A extends class B 2 Class A inherits from class B 3 Class A derives from class B. 4 None of...

Questions regarding java Question 1 If A "Is-A" B, what else can we say about the relationship between class A and class B? Class A extends class B Class A inherits from class B Class A derives from...

FOR JAVA Question 1 If A "Is-A" B, what else can we say about the relationship between class A and class B? Class A extends class B Class A inherits from class B Class A derives from class B. None of...

Question 1 If A "Is-A" B, what else can we say about the relationship between class A and class B? Class A extends class B Class A inherits from class B Class A derives from class B. None of the...

Question 9 What is always the very first thing that occurs in the constructor of a derived class? instance variables are initialized the value true is returned a call to the superclass constructor is...

c) Define 'population forecasting'. Why we forecast 'population' for the future time for a newly establishing town? Mention different methods of 'population forecasting'. Which method would you...

Young Joon Corp. is considering marketing two new graphing calculators, named Speed-Calc 4 and Speed-Calc 5. According to recent market research, the two products will surpass the current competition...

Knowledge Check 01 If the contract rate is less than the market rate, the bond will sell at: multiple choice par value more than par (premium) less than par (discount)

Compared with half a century ago, adoption has become _ _ _ _ _ _ _ _ _ common, but it is more open and acceptabl e , so we probably discuss it _ _ _ _ _ _ _ . fill in the blanks more or much less or...

=+working in IHRM, what policies or practices would you create to deal with foreign assignments?

=+2 Why are so many countries bothered by their brain drains?

=+4 What are the trends over the next ten years in global staffing for many MNEs?