Error location in Python: where the mutants hide
... errors in programs written in the Java programming language. UnnaturalCode produced
additional diagnostic information for Java source files that failed to compile. UnnaturalCode used an n-gram language model to identify snippets of source code that it finds
unlikely to be correct. UnnaturalCode was ...
160-Lab06BKG - Western Oregon University
... and efficient. “An algorithm is an ordered set of unambiguous, executable steps that defines a
terminating process” (Brookshear, Computer Science: An Overview, 2007). An algorithm is
effective if it finds the solution (or a close enough approximation). An algorithm is efficient if
the number of step ...
Dept. of CSE, BUAA
... Methodology: combination, interface-oriented
3. what’s wrong with Unix?
... program, it creates a class file containing bytecode
instructions. This file will have the same name as
the program but with .class as the extension.
• To run a program, use the java command, which
executes the Java interpreter.
• java requires that the name of a class file be
specified (without the ...
No Slide Title
... • null, true, and false are also reserved.
Introduction to PYTHON
... • Although this means you won’t do the bulk of your coding in interactive sessions, the
interactive prompt turns out to be a great place to both experiment with the language
and test program files.
• Python can also read scripts, or files that are pre-written lists of commands to execute
in sequence ...
Programming with Java
... The boolean Data Type Revisited
• You will find boolean variables very useful when setting and
testing conditions for a loop.
• An example of using a boolean variable is when you want to
search through a list for a specific value.
• The item may or may not be found but if a match is found you
want t ...
... API expect structures of type sockaddr
CPE 401/601 Lecture 15 : Socket Programming
... API expect structures of type sockaddr
CPE 401/601 Lecture 10 : Socket Programming
ASP - User pages
... available to all procedures within the script. At the
procedure level, variables are available only within
the procedure. Ex. Dim A,B
Private: Used at script level to declare private variables
and allocate storage space. Private variables are
available only to the script in which they are declared
... Host also needs to know how many bits are
used for subnet ID and how many for host
ID. This is the subnet mask.
Subnet mask is 32 bit value containing “one
bits” for the network ID and subnet ID,
“zero valued bits” for host ID.
Design and Evaluation of Gradual Typing for Python
... line 2, where an implicit cast from Dyn to List(Float) occurred.
A programmer using a library with gradual types need not use static
types themselves — they gain the benefit of early localization and
detection of errors even if they continue to write their own code in
a dynamically typed style.
... A paradigm for computing
JAVA - KOCW
... So Java programs are compiled to a byte code format that can be read
and run by interpreters on many platforms with JVM.
Java is also designed as a system architecture neutral system on
system dependence including syntax of language as well.
ex) a type int is always 32 bits. // 64 bits
Once wr ...
Python Crash Course – Programming tools
... documentation? Is every function, method, class module and file
of your code documented in-code, e.g. with robodoc or doxygen?
Do you provide README files and/or pdf documents as a manual
on how to install and use your program?
... To check whether the extension module is still valid C code,
we compile as gcc -c numfac.c.
To create a shareable object (file with extension .so),
we create a script setup.py:
from distutils.core import setup, Extension
# for using numfac.c :
MOD = ’NumFac’
... Recursion is a math and programming tool
Technically, not necessary
Wasn’t available in early programming languages
4 - osscom
... Create a URL connection with URL of the image
Encode the obtained image using BitMapFactory and establish it to a
... • Do not use MFC if you intend to port to Unix.
• It is possible to use the Intel C++ compiler with
Visual C++ - the Intel compiler should produce
faster binaries (cost $399)
An introduction to C++ template programming
... in now called the Standard Template Library (STL), and templates seem more
central to its design then elaborate deep class hierarchies.
C++ can be thought of as composed of two layers of language constructs.
The lower layer is a simple procedural language aimed at low-level data structures built mai ...
... Lists are Mutable (Cont…)
We can also remove elements from a list by assigning the empty list to
>>> list = ['a', 'b', 'c', 'd', 'e', 'f']
>>> list[1:3] = 
>>> print list
['a', 'd', 'e', 'f']
And we can add elements to a list by squeezing them into an empty slice at
the desired location:
... Rethrowing and Throwing an
• When an exception occurs in a try block,
control immediately passes to one of the
catch blocks; typically, a catch block
does one of the following:
– Completely handles the exception
– Partially processes the exception; in this case,
the catch block either ret ...
Window Interfaces Using Swing
... JAVA: An Introduction to Problem Solving & Programming, 7th Ed. By Walter Savitch
ISBN 0133862119 © 2015 Pearson Education, Inc., Upper Saddle River, NJ. All Rights Reserved
In computer science, functional programming is a programming paradigm—a style of building the structure and elements of computer programs—that treats computation as the evaluation of mathematical functions and avoids changing-state and mutable data. It is a declarative programming paradigm, which means programming is done with expressions. In functional code, the output value of a function depends only on the arguments that are input to the function, so calling a function f twice with the same value for an argument x will produce the same result f(x) each time. Eliminating side effects, i.e. changes in state that do not depend on the function inputs, can make it much easier to understand and predict the behavior of a program, which is one of the key motivations for the development of functional programming.Functional programming has its roots in lambda calculus, a formal system developed in the 1930s to investigate computability, the Entscheidungsproblem, function definition, function application, and recursion. Many functional programming languages can be viewed as elaborations on the lambda calculus. Another well-known declarative programming paradigm, logic programming, is based on relations.In contrast, imperative programming changes state with commands in the source language, the most simple example being assignment. Imperative programming does have functions—not in the mathematical sense—but in the sense of subroutines. They can have side effects that may change the value of program state. Functions without return values therefore make sense. Because of this, they lack referential transparency, i.e. the same language expression can result in different values at different times depending on the state of the executing program.Functional programming languages, especially purely functional ones such as Hope and Rex, have largely been emphasized in academia rather than in commercial software development. However, prominent functional programming languages such as Common Lisp, Scheme, Clojure, Wolfram Language (also known as Mathematica), Racket, Erlang, OCaml, Haskell, and F# have been used in industrial and commercial applications by a wide variety of organizations. Functional programming is also supported in some domain-specific programming languages like R (statistics), J, K and Q from Kx Systems (financial analysis), XQuery/XSLT (XML), and Opal. Widespread domain-specific declarative languages like SQL and Lex/Yacc use some elements of functional programming, especially in eschewing mutable values.Programming in a functional style can also be accomplished in languages that are not specifically designed for functional programming. For example, the imperative Perl programming language has been the subject of a book describing how to apply functional programming concepts. This is also true of the PHP programming language. C# 3.0 and Java 8 added constructs to facilitate the functional style. The Julia language also offers functional programming abilities. An interesting case is that of Scala – it is frequently written in a functional style, but the presence of side effects and mutable state place it in a grey area between imperative and functional languages.