Select the correct answerWhich of the following is an incorrect statement regarding the use of generics and parameterized types in Java?OptionsGenerics provide type safety by shifting more type checking responsibilities to the compilerWhen designing your own collections class (say, a linked list), generics and parameterized types allow you to achieve type safety with just a single class definition as opposed to defining multiple classesAll of the mentionedGenerics and parameterized types eliminate the need for down casts when using Java Collections
Question
Select the correct answerWhich of the following is an incorrect statement regarding the use of generics and parameterized types in Java?OptionsGenerics provide type safety by shifting more type checking responsibilities to the compilerWhen designing your own collections class (say, a linked list), generics and parameterized types allow you to achieve type safety with just a single class definition as opposed to defining multiple classesAll of the mentionedGenerics and parameterized types eliminate the need for down casts when using Java Collections
Solution
The incorrect statement regarding the use of generics and parameterized types in Java is: "Generics and parameterized types eliminate the need for down casts when using Java Collections".
While generics do reduce the need for casting, they do not completely eliminate it. There are still situations where you may need to perform a downcast, even when using generics. For example, if you have a list of objects of type Number and you know that certain elements are of type Integer, you would still need to downcast to Integer to use methods specific to the Integer class.
Similar Questions
What is the purpose of Java generics?Select one:a. To provide type safety at runtimeb. To improve performance of Java codec. To provide type safety at compile-timed. To make Java code more readable
correct answerWhy are generics used?OptionsGenerics make code more fastGenerics add stability to your code by making more of your bugs detectable at compile timeGenerics make code more optimised and readableGenerics add stability to your code by making more of your bugs detectable at runtime
How can you achieve type safety when working with collections in Java?Question 11Answera.By using raw typesb.By using generic typesc.By using wildcard typesd.By using any data type
orrect answerWhich of these is necessary condition for automatic type conversion in Java?OptionsThe destination type is smaller than source typeThe destination type can be larger or smaller than source typeThe destination type is larger than source typeNone of the mentioned
Which of the following is NOT a benefit of using Java generics?Select one:a. Improved type safetyb. Better readabilityc. More efficient code executiond. Code reuse
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.