The Java Runtime Environment (JRE) converts the byte code to machine language.
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The java interpreter or JVM (Java Virtual Machine) is not able to execute the java source code for a program. The java source code first needs to be compiled into bytecode that can be processed by JVM. Producing bytecode make the program platform independent as each platform has its own JVM. It is also possible to directly write bytecode, bypassing the need to compile, but that would be tedious job and also not good for security purpose as the compiler checks for various errors in a program.
Get the JDK & Bluej from net and the rest will be done by them. Java byte codes are stored as *.class ; where "*" represents the class name, in your hard disk. You can download BlueJ as well as JDK from the related link.
No. Java programs run in the Java Virtual Machine (JVM) - without it your computer won't know how to handle Java bytecode.
A JVM, or Java Virtual Machine, creates the environment in which programs that run using Java bytecode are processed. It does not itself possess bytes or bytecode.
That means to convert the original program - the source code, written by a programmer - into machine language, or into an intermediate form, for example, Java bytecode in the case of Java.That means to convert the original program - the source code, written by a programmer - into machine language, or into an intermediate form, for example, Java bytecode in the case of Java.That means to convert the original program - the source code, written by a programmer - into machine language, or into an intermediate form, for example, Java bytecode in the case of Java.That means to convert the original program - the source code, written by a programmer - into machine language, or into an intermediate form, for example, Java bytecode in the case of Java.