In generic programming, what does the term "type erasure" refer to?Question 4Answera.The removal of generic type information during compilationb.The process of generating unique type identifiers for generic classesc.The enforcement of strict typing in generic methodsd.The creation of runtime type instances for generic classes
Question
In generic programming, what does the term "type erasure" refer to?Question 4Answera.The removal of generic type information during compilationb.The process of generating unique type identifiers for generic classesc.The enforcement of strict typing in generic methodsd.The creation of runtime type instances for generic classes
Solution
The term "type erasure" in generic programming refers to the removal of generic type information during compilation. This is done by the Java compiler to ensure backward compatibility with Java versions that do not support generics. During type erasure, the compiler replaces all type parameters in generic types with their bounds or with Object if the type parameters are unbounded. The resulting bytecode, therefore, contains only ordinary classes, interfaces, and methods. Thus, the correct answer is a. The removal of generic type information during compilation.
Similar Questions
Type erasure is a concept in generics where the information on generics is used by the compiler but is not available at runtime. Considering this fact, what is the code equivalent to the following generated by the Java compiler for runtime use?ArrayList<String> list = new ArrayList<>();list.add("Oklahoma");String state = list.get(0);Group of answer choicesArrayList<Object> list = new ArrayList<>();list.add("Oklahoma");String state = list.get(0);ArrayList list = new ArrayList();list.add("Oklahoma");Object state = list.get(0);ArrayList list = new ArrayList();list.add("Oklahoma");String state = list.get(0);ArrayList list = new ArrayList();list.add("Oklahoma");String state = (String)(list.get(0));
What is the significance of the term "Generic" in a class definition?Question 3Answera.It allows the class to accept any data typeb.It specifies a specific data type for the classc.It enforces type safety in the classd.It restricts the use of data types
What are Generics in C#?
In a generic class, what is the purpose of the type parameter?Question 7Answera.To specify the return typeb.To represent any data typec.To define the class named.To restrict the class to a single data type
What is a type cast?Group of answer choicesA permanent value, much like a constantChanging one variable type into anotherDeleting a variableDetermining the variable type
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