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29 lines
740 B

package com.woniu.celuejj;
/**
* 策略模式简化写法 来优化if else逻辑
*/
public class TestMain {
public static void main(String[] args) {
String low_risk = returnHome("LOW_RISK", 1);
System.out.println(low_risk);
}
/**
* 某人回村
* @param from 代表区域风险系数
* @param id 打工人
* @return 要证明
*/
public static String returnHome(String from, Integer id) {
for (ReturnHomeStrategy value : ReturnHomeStrategy.values()) {
if (value.predicate().test(from)) {
return value.function().apply(id);
}
}
throw new RuntimeException("外星人,抓起来放进动物园卖门票!");
}
}