Java

JDK, JRE

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

Install

• http://java.sun.com

• 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
• lambda
• annotation
• jdbc
• junit
• tomcat
• war
• deploy
• ant
• maven
• gradle

참고

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