java.lang.reflect.Field.getGenericType() Method Example


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Description

The java.lang.reflect.Field.getGenericType() method returns a Type object that represents the declared type for the field represented by this Field object.

Declaration

Following is the declaration for java.lang.reflect.Field.getGenericType() method.

public Type getGenericType()

Returns

a Type object that represents the declared type for the field represented by this Field object.

Exceptions

  • GenericSignatureFormatError − if the generic field signature does not conform to the format specified in The Java Virtual Machine Specification.

  • TypeNotPresentException − if the specified object is not an instance of the class or interface declaring the underlying field (or a subclass or implementor thereof).

  • MalformedParameterizedTypeException − if the generic signature of the underlying field refers to a parameterized type that cannot be instantiated for any reason.

Example

The following example shows the usage of java.lang.reflect.Field.getGenericType() method.

package com.tutorialspoint;

import java.lang.reflect.Field;

public class FieldDemo {

   public static void main(String[] args) throws NoSuchFieldException, 
      SecurityException, IllegalArgumentException, IllegalAccessException {
          
      SampleClass sampleObject = new SampleClass();
            
      Field field = SampleClass.class.getField("sampleField");
      System.out.println(field.getGenericType());
   }
}

class SampleClass {
   public static float sampleField = 5.0f;
}

Let us compile and run the above program, this will produce the following result −

float
java_reflect_field.htm
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