Modifier Reflection

The Modifier class provides static methods and constants to decode class and member access modifiers.

static int ABSTRACT: The int value representing the abstract modifier.
static int FINAL: The int value representing the final modifier.
static int INTERFACE: The int value representing the interface modifier.
static int NATIVE: The int value representing the native modifier.
static int PRIVATE: The int value representing the private modifier.
static int PROTECTED: The int value representing the protected modifier.
static int PUBLIC: The int value representing the public modifier.
static int STATIC: The int value representing the static modifier.
static int STRICT: The int value representing the strictfp modifier.
static int SYNCHRONIZED: The int value representing the synchronized modifier.
static int TRANSIENT: The int value representing the transient modifier.
static int VOLATILE: The int value representing the volatile modifier.

static boolean isAbstract(int mod): Is abstract modifier.
static boolean isFinal(int mod): Is final modifier.
static boolean isInterface(int mod): Is interface modifier.
static boolean isNative(int mod): Is native modifier.
static boolean isPrivate(int mod): Is private modifier.
static boolean isProtected(int mod): Is protected modifier.
static boolean isPublic(int mod): Is public modifier.
static boolean isStatic(int mod): Is static modifier.
static boolean isStrict(int mod): Is strictfp modifier.
static boolean isSynchronized(int mod): Is synchronized modifier.
static boolean isTransient(int mod): Is transient modifier.
static boolean isVolatile(int mod): Is volatile modifier.
static String toString(int mod): Convert modifier int flag to string.

Return true if the integer argument includes the public modifier, false otherwise


import java.lang.reflect.Modifier;

public class Main {
  public static void main(String[] args) throws Exception {
    getClassModifier(String.class);
  }

  private static void getClassModifier(Class clazz) {
    int modifier = clazz.getModifiers();

    if (Modifier.isPublic(modifier)) {
      System.out.println(clazz.getName() + " class modifier is public");
    }
  }
}

The output:


java.lang.String class modifier is public

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