Java枚举的使用案例

package com.djh.exec;
/**
 * 
 * 枚举定义
 *
 */
enum Num{
	ONE(100,"one"),TWO(200,"two"),THREE(300,"three"),FOUR(400,"four"),OTHER(900,"错误");
	private int n ;
	private String value;

	public int getN() {
		return n;
	}

	public void setN(int n) {
		this.n = n;
	}

	public String getValue() {
		return value;
	}
	public void setValue(String value) {
		this.value = value;
	}
	private Num(int n,String value) {
		this.n=n;
		this.value=value;
	}
	
	public static Num getNum(int n ,String v) {
		for(Num num: Num.values()) {
			int n1 = num.getN();
			String v1 = num.getValue();
			if(n1==n && v.equals(v1)) {
				return num;
			}
		}
		return Num.OTHER;
	}
}


/**
 * 
 * 枚举的使用
 *
 */
public class Exe {
	   public static void main(String[] args) {
		   Num n =  Num.getNum(100, "one");
		   switch(n) {
		     case ONE:
		    	 System.out.println(Num.ONE);
		    	 break;
		     case TWO:
		    	 System.out.println(Num.TWO);
		    	 break;
		     case THREE:
		    	 System.out.println(Num.THREE);
		    	 break;
		     case FOUR:
		    	 System.out.println(Num.FOUR);
		    	 break;
		    default:
		    	System.out.println(n.toString());	 
		   }
	   }
	}