Java Class isSynthetic() Method

The isSynthetic() method of java Class class returns true if this class is a synthetic class; returns false otherwise.

Syntax

Parameter

No parameter is passed.

Returns

true if and only if this class is a synthetic class as defined by the Java Language Specification.

Throws

Example 1

import java.lang.reflect.Method;
public class ClassisSyntheticExample1 {
   public static void main(String[] args) {

      Method[] mthd = Sample11.class.getMethods();
      System.out.println("Is Synthetic  ::"    +mthd[1].isSynthetic());
   }
}

class Sample11 {
   private String fld;
   
   public String gefld() {
      return fld;
   }

   public void setfld(String fld) {
      this.fld = fld;
   } 
}

Test it Now

Output:

Is Synthetic  ::false

Example 2

import java.io.Serializable;
public class ClassisSyntheticExample2 {
    public static void main(String... args) {
        boolean bln = Enum.class.isSynthetic();
        System.out.println(bln);
        bln = ClassisSyntheticExample2.class.isSynthetic();
        System.out.println(bln);
        bln = new Serializable() {}.getClass().isSynthetic();
        System.out.println(bln);
        Runnable runnable = () -> {};
        bln = runnable.getClass().isSynthetic();
        System.out.println(bln);
    }
}

Test it Now

Output: