The question is realated to java. 😊

Question

What is the actual meaning of bytecode in Java?
And
What is "Sandbox" in bytecode?

Answer 1

Java bytecode is the result of the compilation of a Java program, an intermediate representation of that program which is machine independent. 
The Java bytecode gets processed by the Java virtual machine (JVM) instead of the processor. It is the job of the JVM to make the necessary resource calls to the processor in order to run the bytecode.
This bytecode can be run in any platform which has a Java installation in it.
Get information about Sandbox from here..
https://www.webopedia.com/TERM/S/sandbox.html