RE: JVM is platform independent/dependent?why? ...
JVM is Platform dependent b'coz if JVM is not loaded in the platform then we can't run program. For every platform need to upload JVM. ArrayList is faster than Array b'coz ArraList is not Synchronized and they directly take parameter, less complcated and easy.
RE: JVM is platform independent/dependent?why? ...
JVM is platform dependent. Just think u don' t use a unique jdk for each operating system. You have different versions of jdk for different platform. So each version creates each different JVM for different platform. But JVM converts the byte code , is platform independent.Array is faster than ArrayList. Because ArrayList can take different type of objects as parameter. by Array is only one type of datatype. ArrayList may faster if u use generics.
RE: JVM is platform independent/dependent?why? 2) which one is faster in execution Array List or Array? why?
JVM is PI.Byte code is a highly optimized set of instructions. JVM is an interpreter for byte code. Translating a java program into byte code helps makes it much easier to run a program in a wide variety of environment.JVM is an interpreter for byte codeJRE is an implementation of the Java Virtual Machine, which actually executes Java programs.
RE: JVM is platform independent/dependent?why? 2) which one is faster in execution Array List or Array? why?
The Java Virtual Machine (JVM) is an executable that is itself is platform dependent: that is, there is a unique JVM that must be implemented for any particular platform to which it is deployed.
The JVM creates an environment that can load and run Java code. The JVM environment itself is platform independent for any Java code that is run under its auspices.
2) The answer here depends entirely on what one does with the ArrayList or Array. Since the ArrayList is a derived Collection object, and an Array is an ordered array of primitive types on might expect operations on an Array to complete more quickly than operations using the "fatter" interface of the ArrayList -- all other factors being equal.
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