public class OutClass {
public void close() {
StaticInnerClass.close();
}
public String getByKey(String key) {
return StaticInnerClass.getClient().get(key);
}
private static class StaticInnerClass {
private static final TypeClassA a;
private static final TypeClassB b;
static {
a = new TypeClassA();
a.setUrl("rds://123/45");
b = a.getClient();
}
public static TypeClassB getClient() {
return b;
}
public static void close() {
if (a != null) {
a.clear();
}
}
}
}
今天看了别人一段代码,颇困惑于对方为什么要这样写。不知大师能否帮忙解答一下,他们这样使用是否冗余了,有什么特别的玄机没有?谢谢