枚举类

/**
 * 先写构造方法，如果先写RED（1，“红色”）会报错的
 */
public enum Color {

    RED(1,"红色"),
    GREEN(2,"绿色"),
    YELLOW(2,"黄色");

    private int code;
    private String name;

    Color(int code, String name) {
        this.code = code;
        this.name = name;
    }

    public int getCode() {
        return code;
    }

    public void setCode(int code) {
        this.code = code;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}