Distinguish between Java and Python.

In interactive mode, instructions are given in front of Python prompt (>>>) in Python Shell. Python carries out the given instructions and shows the result there itself. In script mode, Python instructions are stored in a file, generally with .py extension, and executed together in one go as a unit. The saved instructions are known as Python script or Python program.

Ans. Every variable in Python holds an instance of an object. There are two types of objects in Python, Le Mutable and Immutable objects. Whenever an object is instantiated, it is assigned a unique object id The type of the object is defined at the runtime and it can't be changed afterwards. However, its state can be changed if it is a mutable object.

For example, int, float, bool, string, unicode, tuple are immutable objects in Python. In simple words, an immutable object can't be changed after it is created. Lists, dictionaries and sets are mutable types.

>>> result = 3.25 +4

>>> print (result, 'is', type (result)) 7.25 is <class 'float'>

Its type is a float as integers are automatically converted into floats as necessary.

Ans. The above statement, upon execution, shall result in an error since Python int command cannot convert the string "3.4" into 3.4 as Python cannot perform two consecutive typecasts, therefore, you must convert it explicitly in code. This statement is to be modified such as: int(float("3.4")) which shall generate the output as 3.