JDK:
1. Java development kit contains tools for developing java programs such as compiler (javac.exe) whihc converts source code inro byte code,
Interpreter, Java Application launcher (java.exe) which converts byte coe into mechine code.
JRE :
1. Java Runtime Environment contains JVM, class libraries and other supported files. It does not contain any developer tools such as compiler, interpreter. Actually JVM runs the program using library files and other supported files that are provided by JRE.
JVM :
1. JVM is in both JRE and JDK.
2. JVM runs the java program using library files in jre.
3. JVM interpretes the byte code into machine code.
4. JVM is called "virtual" because it creates machine interface which does not depend on underlying operatiog system and machine hardware architecture.
[ JVM interpretes byte code into machine code which does not depend on underlying operating system ]
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1. Java development kit contains tools for developing java programs such as compiler (javac.exe) whihc converts source code inro byte code,
Interpreter, Java Application launcher (java.exe) which converts byte coe into mechine code.
JRE :
1. Java Runtime Environment contains JVM, class libraries and other supported files. It does not contain any developer tools such as compiler, interpreter. Actually JVM runs the program using library files and other supported files that are provided by JRE.
JVM :
1. JVM is in both JRE and JDK.
2. JVM runs the java program using library files in jre.
3. JVM interpretes the byte code into machine code.
4. JVM is called "virtual" because it creates machine interface which does not depend on underlying operatiog system and machine hardware architecture.
[ JVM interpretes byte code into machine code which does not depend on underlying operating system ]
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