example5.java

JAVA SE6 全方位学习 朱仲杰 编著 机械工业出版社出版

package java2.E;

import static java2.E.NewDepartment.*;

public class Example5
{
	enum Jobs { ENGINEER, PROGRAMMER, SALES};
	
	public static void main(String[] args)
	{
		//compareTo
		int i = MARKETING.compareTo(SALES);
		int i2 = MARKETING.compareTo(ENGINEER);
		int i3 = MARKETING.compareTo(MARKETING);
		System.out.printf("MARKETING compare to SALES is %d\n", i);
		System.out.printf("MARKETING compare to ENGINEER is %d\n", i2);
		System.out.printf("MARKETING compare to MARKETING is %d\n", i3);

		//equals
		boolean b = HR.equals(SALES);
		boolean b2 = HR.equals(HR);
		System.out.printf("HR and SALES are equal? %b\n", b);
		System.out.printf("HR and HR are equal? %b\n", b2);
		
		//getDeclaringClass
		Class c = ENGINEER.getDeclaringClass();
		Class c2 = Jobs.ENGINEER.getDeclaringClass();
		System.out.printf("ENGINEER\'s declaring class is %s\n", c.getName());
		System.out.printf("ENGINEER\'s declaring is %s\n", c2.getName());
		
		//name
		String s = ENGINEER.name();
		String s2 = ENGINEER.toString();
		System.out.printf("s and s2 are equals? %b\n", s.equals(s2));
		
		//ordinal
		int j = ENGINEER.ordinal();
		int j2 = HR.ordinal();
		System.out.printf("ENGINEER\'s ordinal is %d\n", j);
		System.out.printf("HR\'s ordinal is %d\n", j2);
		
		//valueOf
		NewDepartment dept = NewDepartment.valueOf("HR");
		boolean b3 = dept.equals(HR);
		System.out.printf("dept(%s) is HR? %b\n", dept.name(), b3);
		
		//values
		NewDepartment[] depts = NewDepartment.values();
		System.out.printf("NewDepartment type has %d values, there are %s, %s, %s and %s.\n",
						depts.length, depts[0].name(), depts[1].name(), depts[2].name(), depts[3].name());
	}
}