Class getTypeParameters() method in Java with Examples
Last Updated :
27 Jan, 2022
The getTypeParameters() method of java.lang.Class class is used to get the type parameters of this entity. This entity can be a class, an array, an interface, etc. The method returns an array of TypeVariable objects representing the type variables.
Syntax:
public TypeVariable<Class<T>> getTypeParameters()
Parameter: This method does not accept any parameter.
Return Value: This method returns an array of TypeVariable objects representing the type variables.
Below programs demonstrate the getTypeParameters() method.
Example 1:
Java
import java.util.*;
public class Test {
public static void main(String[] args)
throws ClassNotFoundException
{
Class myClass = Class.forName("Test");
System.out.println("Class represented by myClass: "
+ myClass.toString());
System.out.println(
"TypeParameters of myClass: "
+ Arrays.toString(
myClass.getTypeParameters()));
}
}
|
Output:
Class represented by myClass: class Test
TypeParameters of myClass: []
Example 2:
Java
import java.util.*;
public class Test {
public static void main(String[] args)
throws ClassNotFoundException
{
Class myClass = Class.forName("java.lang.Integer");
System.out.println("Class represented by myClass: "
+ myClass.toString());
System.out.println(
"TypeParameters of myClass: "
+ Arrays.toString(
myClass.getTypeParameters()));
}
}
|
Output:
Class represented by myClass: class java.lang.Integer
TypeParameters of myClass: []
Reference: https://docs.oracle.com/javase/9/docs/api/java/lang/Class.html#getTypeParameters–
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