2020-03-12 TIL

할 일 목록

• 코어자바 4장 공부하고 정리하기
• 코어자바 4장 문제 풀기
• 알고리즘 문제 1문제 풀기
• 3분 네트워크 3장 읽고 장문제 만들고 풀기

완료하지 못한 목록

• 3분 네트워크 1(이미 만듬) ,2,3 장문제 만들고 풀기

완료 목록

• 알고리즘 문제 1문제 풀기

class Class

Instances of the class Class represent classes and interfaces in a running Java application. An enum is a kind of class and an annotation is a kind of interface. Every array also belongs to a class that is reflected as a Class object that is shared by all arrays with the same element type and number of dimensions. The primitive Java types (boolean, byte, char, short, int, long, float, and double), and the keyword void are also represented as Class objects. Class has no public constructor. Instead Class objects are constructed automatically by the Java Virtual Machine as classes are loaded and by calls to the defineClass method in the class loader.

Service

A service is a well-known set of interfaces and (usually abstract) classes.

Service Loader

A service provider is a specific implementation of a service. The classes in a provider typically implement the interfaces and subclass the classes defined in the service itself. Service providers can be installed in an implementation of the Java platform in the form of extensions, that is, jar files placed into any of the usual extension directories. Providers can also be made available by adding them to the application’s class path or by some other platform-specific means.

5Fs

1. Fact

• 코어자바 3장 다 풀었다.
• 알고리즘 문제 소수찾기 시간초과 났다.

2.Feelings

• 확실히 문제를 풀면서 모르는 부분을 찾아서 풀어보니까 더 공부가 잘된다.

3.Findings

• 주어진 배열요소들을 이용하여 모든 경우를 구하는 알고리즘을 생각해봄

  1. 1 ~ 배열 개수 까지 돌면서 (i)
  2. nCi를 모두 구함.
  3. 그리고 정해진 배열에 대한 순열을 구하는 메서드에 입력한다.
  4. 내일 코딩해보기.

4.Future Action Plan

5.FeedBack