ANS- Platform independence means that we can write and compile the java code in one platform (eg- Windows) and can execute the class in any other supported platform eg (Linux,Solaris,etc).
What is a JVM?
ANS- JVM is Java Virtual Machine which is a run time environment for the compiled java class files.
Are JVM's platform independent?
ANS- JVM's are not platform independent. JVM's are platform specific run time implementation
provided by the vendor.
What is the difference between a JDK and a JVM?
ANS- JDK is Java Development Kit which is for development purpose and it includes execution environment also. But JVM is purely a run time environment and hence you will not be able to compile your source files using a JVM
What is a pointer and does Java support pointers?
ANS- Pointer is a reference handle to a memory location. Improper handling of pointers leads to memory leaks and reliability issues hence Java doesn't support the usage of pointers.
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