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What’s new for me Do not need to declare variables indentation replaces curly braces to divide code blocks Grammar Assigning value to multiple variables x, y, z = 1, 2, "hello" Define a global variable in local function def myfunc(): global x x = "fantastic" Change the value of a global variable inside the function x = "declan" def myfunc(): global x x = "declan and jessica" New data type for me Sample Data Type x = 1j complex x = ["apple", "banana", "cherry"] list x = ("apple", "banana", "cherry") tuple x = range(6) range x = {"name" : "Bill", "age" : 63} dict x = {"apple", "banana", "cherry"} set x = frozenset({"apple", "banana", "cherry"}) frozenset x = True bool x = b"Hello" bytes x = bytearray(5) bytearray x = memoryview(bytes(5)) memoryview Specifying the data type x = dataType(value) Verify the data type x = 'declan' type(x) Random number import random x = random.

import java.

import java.

import java.

Question My thought Nothing… The problem is pretty easy, however it troubled me for a quite long time.

First of all, let’s see what extensions I am using now.

ArrayList // the data type must be a type of class ArrayList<String> a = new ArrayList<String>(); ArrayList<Integer> b = new ArrayList<Integer>(); // the size of the ArrayList arrayList.

We do more than change the world.

A moving film – Rudy Today I cried I have never imagined that I can be moved so deeply by a particular film.

Today I cried I have never imagined that I can be moved so deeply by a particular film.