java 枚举 示例

枚举类name()方法 (Enum Class name() method)

• name() method is available in java.lang package.

  name()方法在java.lang包中可用。

• name() method is used to return the name of this enum constants as it is declared in its enum prototype or declaration.

  name()方法用于返回此枚举常量的名称，该名称在其枚举原型或声明中进行了声明。

• name() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.

  name()方法是一个非静态方法，只能通过类对象访问，如果尝试使用类名称访问该方法，则会收到错误消息。

• name() method is a final method, it does not override in child class.

  name()方法是最终方法，它不会在子类中重写。

• name() method does not throw an exception at the time of returning the name of the enum constants.

  返回枚举常量名称时， name()方法不会引发异常。

Syntax:

句法：

    public final String name();

Parameter(s):

参数：

• It does not accept any parameter.

  它不接受任何参数。

Return value:

返回值：

The return type of this method is String, it returns the name of this enum constant.

该方法的返回类型为String ，它返回此枚举常量的名称。

Example:

例：

// Java program to demonstrate the example 
// of String name() of Enum method

enum Month {
    JAN,
    FEB,
    MAR,
    APR,
    MAY;
}

public class Name {
    public static void main(String args[]) {

        Month m1 = Month.JAN;
        Month m2 = Month.FEB;
        Month m3 = Month.MAR;
        Month m4 = Month.APR;
        Month m5 = Month.MAY;

        System.out.println("Display Name: ");
        // By using name() method is to get the enum
        // constant name 
        System.out.println("m1.name() " + " " + m1.name());
        System.out.println("m2.name()" + " " + m2.name());
        System.out.println("m3.name()" + " " + m3.name());
        System.out.println("m4.name()" + " " + m4.name());
        System.out.println("m5.name()" + " " + m5.name());
    }
}

Output

输出量

Display Name: 
m1.name()  JAN
m2.name() FEB
m3.name() MAR
m4.name() APR
m5.name() MAY

翻译自: https://www.includehelp.com/java/enum-name-method-with-example.aspx

java 枚举 示例