work119.java
package test06; public class work119 { enum Constants4 { A, B, C, D } public static void compare(Constants4 c) { for (int i = 0; i < Constants4.values().length; i++) { System.out.println(c + "与" + Constants4.values()[i] + "的比较结果为:" + c.compareTo(Constants4.values()[i])); } } public static void main(String[] args) { work119.compare(Constants4.valueOf("B")); } } /* * 调用枚举类型Constants4.compareTo方法的结果, * 正值表示该对象之前, * 0表示位置相同, * 负值表示该对象之后 * */