OKdevTV

Java

JDK, JRE

• Java Development Kit
• Java Runtime Environment
• JDK = JRE + javac

Install

• https://github.com/ojdkbuild/ojdkbuild
• CentOS

yum list | grep jdk
sudo yum remove java-1.7.0-openjdk.x86_64 -y
sudo yum install java-1.8.0-openjdk-devel.x86_64 -y

• Ubuntu openjdk

sudo add-apt-repository ppa:openjdk-r/ppa

sudo apt-get update
sudo apt-get install openjdk-8-jdk -y

• Ubuntu oracle-jdk

sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java8-installer
sudo apt-get install oracle-java8-set-default

• mac

export JAVA_HOME="$(/usr/libexec/java_home -v 1.8)"

• 자바의신 1권 36p

기본 용어

• 패키지(package)

• 클래스(class)

• 메소드(method)

• 명령문(statement)

• 자바의신 1권 20p

• 들여쓰기(indent)

• 예약어(reserved word)

Other topic

• inheritance
• interface
• generic
• autoboxing
• annotation
• lambda
• future
• jdbc
• junit
• tomcat
• war
• deploy
• maven
• gradle
• ant

참고

• 2시간만에 자바 시작
  • http://www.slideshare.net/kenu/java-in-2-hours
  • http://bit.ly/okjava2020
• 2시간만에 자바를 쉽게 배우고 싶어요.
  • http://www.slideshare.net/kenu/java-start01-in-2hours
• kenu's java
  • http://j.mp/okdevtv-java