Field isSynthetic() method in Java with Examples

Class isSynthetic() method in Java with Examples

Last Updated : 12 Jul, 2025

The isSynthetic() method of java.lang.Class class is used to check if this Class is the Synthetic class. The method returns true if this Class is the Synthetic class. It returns false otherwise.
Syntax:

public boolean isSynthetic()

Parameter: This method does not accept any parameter.
Return Value: This method returns true if this Class is the Synthetic class. It returns false otherwise.
Below programs demonstrate the isSynthetic() method.
Example 1:

Java

// Java program to demonstrate isSynthetic() method

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());

        // Check if this class is an synthetic
        // using isSynthetic() method
        System.out.println("Is Test an synthetic: "
                           + myClass.isSynthetic());
    }
}

Output:

Class represented by myClass: class Test
Is Test an synthetic: false

Example 2:

Java

// Java program to demonstrate isSynthetic() method

// declaring an Annotation Type
@interface A {
    // interface element definitions
}

public class Test {
    public static void main(String[] args)
        throws ClassNotFoundException
    {

        // returns the Class object for A
        Class myClass = A.class;

        // Check if myClass is an synthetic
        // using isSynthetic() method
        System.out.println("Is A an synthetic: "
                           + myClass.isSynthetic());
    }
}

Output:

Is A an synthetic: false

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

Field isSynthetic() method in Java with Examples

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