Home > Java > JDK, SDK, JRE, J2SE, J2ME, J2EE

JDK (Java Development Kit)
For developing or compiling Java programs (*.java -> *.class -> *.jar)

SDK (Software Development Kit)
a common term

JRE (Java Runtime Environment)
For executing a Java program

J2SE (Java 2 Standard Edition)
For common purposes. e.g. on PC

J2ME (Java 2 Micro Edition)
For small devices. e.g. mobile phones, palmtops

J2EE (Java 2 Enterprise Edition)
AFAIK framework and methodology to produce applications in 3-layer technology (robust applications)

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