Which keyword is used to define a generic class in Java?Question 1Answera.classb.genericc.templated.Extend
Question
Which keyword is used to define a generic class in Java?
Question 1
- a.
class
- b.
generic
- c.
template
- d.
Extend
Solution
The keyword used to define a generic class in Java is b. generic.
In Java, generic programming allows developers to define classes, interfaces, and methods with type parameters. This means you can create a class that can operate on objects of various types while providing compile-time type safety. The syntax for defining a generic class includes the use of angular brackets <>
after the class name, where you specify the type parameter(s).
For example:
class Box<T> {
private T item;
public void setItem(T item) {
this.item = item;
}
public T getItem() {
return item;
}
}
In this example, T
is the type parameter that can be replaced with any object type when you create an instance of Box
. This allows for more flexible and reusable code, as the same class can work with different data types without casting and type-checking at runtime, ensuring type safety at compile time.
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