不用java8
public void testErgodicWayThree() {
System.out.println("---------------------Before JAVA8 ------------------------------");
for (Map.Entry<String, Object> entry : map.entrySet()) {
System.out.println("key:value = " + entry.getKey() + ":" + entry.getValue());
}
System.out.println("---------------------JAVA8 ------------------------------");
map.entrySet().forEach(entry -> System.out.println("key:value = " + entry.getKey() + ":" + entry.getValue()));
}
使用Java8
/**
* 遍历Map第五种
* 通过k,v遍历，Java8独有的
*/
@Test
public void testErgodicWayFive() {
System.out.println("---------------------Only JAVA8 ------------------------------");
map.forEach((k, v) -> System.out.println("key:value = " + k + ":" + v));
}
