It is thus essential to develop and run a java program on our computer. It contains development tools to provide an environment to develop java programs and JRE to execute java programs. It is the whole package entailing compiler, Java Runtime Environment ( JRE), java docs, debuggers etc. JDK: JDK stands for Java Development Kit. So, the function of JVM is to compile the bytecode and the output produced after compiling is the same across all operating systems. JVM loads the code, verifies and executes the code. JVM is the one that actually calls the main method present in a java code. In the running phase, JVM then converts the compiled bytecode into machine language. It takes java code as input and converts it into bytecode. The compilation is performed using JAVAC compiler. As we know, java codes are first compiled into bytecodes.
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