修饰符是 Java 中的 Public(mod)方法,示例

原文:https://www . geesforgeks . org/modifier-ispublicmod-method-in-Java-with-examples/

Java . lang . reflect . modifier是 Public(mod) 方法,用于检查整数参数是否包含 Public 修饰符。如果此整数参数表示公共类型修饰符,则方法返回 true 否则返回 false。

语法:

public static boolean isPublic(int mod)

参数:该方法接受整数名称,因为 mod 表示一组修饰符。

返回:如果 mod 包含公共修饰符,则该方法返回 true 否则为假。

以下程序说明 isPublic()方法: 程序 1:

// Java program to illustrate isPublic() method

import java.lang.reflect.*;

public class GFG {

    // create a String Field
    public String string;

    public static void main(String[] args)
        throws NoSuchFieldException,
               SecurityException
    {

        // get Field class object
        Field field
            = GFG.class.getDeclaredField("string");

        // get Modifier Integer value
        int mod = field.getModifiers();

        // check Modifier is public or not
        boolean result = Modifier.isPublic(mod);

        System.out.println("Mod integer value "
                           + mod + " is public : "
                           + result);
    }
}

Output:

Mod integer value 1 is public : true

程序 2:

// Java program to illustrate isPublic()

import java.lang.reflect.*;

public class GFG {

    // create an int Field
    public int numbers;

    public static void main(String[] args)
        throws NoSuchFieldException,
               SecurityException
    {

        // get Field class object
        Field field
            = GFG.class
                  .getDeclaredField("numbers");

        // get Modifier Integer value
        int mod = field.getModifiers();

        // check Modifier is public or not
        boolean result = Modifier.isPublic(mod);

        System.out.println("Mod integer value "
                           + mod + " is public : "
                           + result);
    }
}

Output:

Mod integer value 1 is public : true

参考文献:https://docs . Oracle . com/javase/10/docs/API/Java/lang/reflect/modifier . html # isPublic(int)