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Class getComponentType() method in Java with Examples

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  • Last Updated : 27 Jan, 2022
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The getComponentType() method of java.lang.Class class is used to get the Class representing the component type of an array, if this class represents one. Else it returns null.
Syntax: 
 

public Class getComponentType()

Parameter: This method does not accept any parameter.
Return Value: This method returns Class representing the component type of an array if this class represents one. Else it returns null.
Below programs demonstrate the getComponentType() method.
Example 1:
 

Java




// Java program to demonstrate getComponentType() method
 
import java.util.*;
 
public class Test {
    public static void main(String[] args)
        throws ClassNotFoundException
    {
 
        // returns the Class object for this class
        Class myClass = Class.forName("Test");
 
        System.out.println("Class represented by myClass: "
                           + myClass.toString());
 
        // Get the type of interfaces of myClass
        // using getComponentType() method
        System.out.println("ComponentType of myClass: "
                           + myClass.getComponentType());
    }
}

Output: 

Class represented by myClass: class Test
ComponentType of myClass: null

 

Example 2:
 

Java




// Java program to demonstrate getComponentType() method
 
import java.util.*;
 
public class Test {
 
    public static void main(String[] args)
        throws ClassNotFoundException
    {
 
        int[] Arr = new int[5];
 
        // returns the Class object
        Class arrClass = Arr.getClass();
 
        // Get the ComponentType of arrClass
        // using getComponentType() method
        System.out.println("ComponentType of myClass: "
                           + arrClass.getComponentType());
    }
}

Output: 

ComponentType of myClass: int

 

Reference: https://docs.oracle.com/javase/9/docs/api/java/lang/Class.html#getComponentType–
 


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