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By Richard Hightower

Characterised by way of ease of use, richness of expression, and concise syntax, Python has remained a greatest programming language for greater than a decade, and is utilized by rookies and pros alike. specifically, its shut courting to Java(TM) makes the 2 languages, while utilized in blend, excellent for internet and dispensed firm program development.This educational starts off with assurance of a few of the fundamentals of Python programming. utilizing lots of skill-building routines and interactive programming classes, this ebook may also help these new to programming strengthen an realizing of strategies and sensible recommendations. for knowledgeable programmers, the booklet demonstrates Python's breadth of services and exhibits the ways in which Python interfaces with Java APIs for pro program development.Python Programming with the Java(TM) type Libraries: an instructional for development net and firm purposes with Jython covers vital subject matters akin to: basic programming suggestions, together with statements, expressions, interpreters, and compilers Python fundamentals, together with operators, string formatting, namespaces, sessions, error, and exceptions Object-oriented programming options dossier input/output Python's intrinsic capabilities Formatting, parsing, and manipulating strings Interfacing with the Java APIs and dealing with Java Streams utilizing Python and Java Swing to create GUIs operating with SQL and JDBC(TM) Python and Java applets furthermore, the booklet includes directions for downloading and fitting the Python language and the Java improvement package (JDK). Terminology, definitions, factors, and various code samples make this e-book an invaluable studying experience.Whether you're a refined computing device consumer new to programming or a significant program developer, Python Programming with the Java(TM) type Libraries offers you perception into the ability of Python and the information to place it to paintings.

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You can even use slice notation, which we learned about in Chapter 1. 0, 50000000000000000L] >>> You can tell a list by the square brackets ([ ]) that surround it. Empty brackets mean that there are no items in the list. Lists can be added and multiplied. >>> list1 = [] #create an empty list >>> list2 = ["a", "b", 10, 11, 12, 13] >>> list1 # show the empty lists contents [] >>> list2 #show the contents of the list with items ['a', 'b', 10, 11, 12, 13] >>> list1 = list2 + list2 #add the lists together >>> list1 ['a', 'b', 10, 11, 12, 13, 'a', 'b', 10, 11, 12, 13] >>> list1 = list2 * 2 #multiply a list >>> list1 ['a', 'b', 10, 11, 12, 13, 'a', 'b', 10, 11, 12, 13] You can also append and remove list items, with the list object's append() and remove() methods.

Just remember that if's subordinate statements must be indented. ) The ... prompt tells you to enter the subordinate statement, print. Make sure to indent print, and then hit Enter to indicate that the if statement is finished. Here is your first if statement, step by step. 1. At the >>>, type >>> if type(string) == StringType: [hit Return] 2. At the ... prompt, [hit Tab] print ("string is a StringType") [hit Return] 3. At the ... prompt, [hit Return] The next three interactive sessions test whether the variable int is of type Integer, the variable float is of type Float, and the variable long is of type Long.

The following example shows how to do this: >>> x,y,z = 1,4,2 >>> x = 2 + (y/z) >>> x 4 >>> x = (2+y) /z >>> x 3 The choice of precedence here depends on which expression 2 + y or y/z is to be evaluated first. Note, though, that the value of x changes according to the grouping and ends up as either 4 or 3. The first expression, 2 + y/z, is unnecessary except to adorn the code with parentheses for clarity, which is important for code maintainability. org for a detailed description of operator precedence.

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