Java : How to check if the field of a class is FINAL by Reflection
Points To Remember
- You can use Reflection to check if the field of a class is final or not.
- You need to get the modifiers of the field to check if the field is final
How to check if the field of a class is final by Reflection
The following is the only way to check if the field is final or notfield.getModifiers()& Modifier.FINAL) == Modifier.FINAL
Following program shows how to get the final fields from a class.
package com.ekiras.demo; import java.lang.reflect.Field; import java.lang.reflect.Modifier; public class Test { public static void main(String args[]){ Field[] fields = Person.class.getDeclaredFields(); for(Field field : fields){ if((field.getModifiers()& Modifier.FINAL) == Modifier.FINAL ){ System.out.println("final field :: " + field.getName()); } } } } class Person{ public static final int someConstant = 2; private String name; private String email; public String getName() { return name; } public void setName(String name) { this.name = name; } public String getEmail() { return email; } public void setEmail(String email) { this.email = email; } }
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