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1. Top results related to computer programming languages for beginners for free worksheets

   • for loop VS while loop in programming languages, c++/java?

     Top Answer

     Answered Nov 24, 2011 · 2 votes

     I find it hard to imagine situations where the code samples you give would have different performance characteristics.

     I do have a mild curiosity for you though. In Pascal like languages (e.g. Delphi) the loop limits are evaluated only once. This differs from the C like languages where the loop limits are evaluated each iteration. This can have performance implications but of course its trivial to write performant code in C like languages by introducing a local outside the loop.

     For example:

     Delphi

     for i := 0 to List.Count-1 do DoStuff(List[i]);-

     List.Count is only evaluated once.

     C++

     for (int i=0; i<List.getCount(); i++) DoStuff(List.getItem(i));-

     Here, List.getCount() is called every time around the loop.

     If it transpires that evaluating the loop limits is expensive then this difference can be relevant. Naturally it is trivial to evaluate List.getCount() outside the loop and store the result in a local variable.

     Having compared the for loops of Pascal and C/C++ I would say that the Pascal version is very simplistic in comparison. This is not necessarily a bad thing because for more complex there is always while available.

     Other Answers

     Answered Nov 24, 2011 · 4 votes

     All sensible compilers should compile equivalent loops to identical assembly / IL code involving branches and jumps. (at least with optimizations enabled)

     Other Answers

     Answered Nov 24, 2011 · 3 votes

     On certain CPU architectures, the characteristics of the loop may provide opportunities for more optimization than the choice of for versus while.

     In particular, FORTRAN and Pascal recommended a constant (rather than a variable) for the number of loop iterations which some CPUs can optimize. For example, on a Cyber (a 1970s Iron Dinosaur mainframe), a 15-bit register holds the for loop index which can easily be compared. A while instead uses one or two of the harder-to-access 60-bit registers. Also, a Cyber branch instruction is considerably more expensive than the loop housekeeping, or possibly the loop content. In such cases, a high level of optimization might unroll the loop to avoid all the overhead.

     However, modern code generators don't work like they used to: source code is turned into an intermediate parse structure which abstracts such choices away. In short, for versus while makes no difference.

     Check all answers on Stack Overflow

     1/5

   • Free HTML Workshop For Beginners

     HTML, HyperText Markup Language is the fundamental unit of web development that describes the structure of a web page. The language is responsible for organizing text, adding graphics or videos, defining hyperlinks, and several other core tasks on the web page. You can understand it as – the way a strong foundation is necessary for a building similarly, the knowledge of this fundamental tech skill is very much essential if you want to get ahead with the web development domain.Keeping this in mind, GeeksforGeeks is providing you with an enriching HTML Workshop-based Course that will surely help you to learn HTML from scratch in an innovative and interesting way and that too without any cost!!! (Yes, you heard it right – it’s available for FREE…!!). Check the detailed information from below:

     Course Details  In this course, there will be a live 5-week HTML Workshop that will take you through all the basic concepts of HTML – from tags, elements to tables, classes, and forms. You will learn all these HTML concepts with various fun activities and examples. Also, you’ll get to solve a quiz after each session...

     Check all answers on Geeksforgeeks

     2/5

   • FREE Python Course For Beginners

     Whether you’re seeking a career in Machine Learning or Data Science or Website Development – the knowledge of Python Language is very much relevant in all these domains. And as it is widely used in numerous areas, Python is preferred by almost every tech giant out there such as Google, Facebook, YouTube, etc for their respective platforms or businesses.

     Now, you must be thinking that if Python is enjoying such huge popularity and there are enormous opportunities for Python Developers across various tech domains – then why are the individuals not going with it? The reason is that a majority of the individuals, especially beginners, don’t know the actual roadmap of learning Python. They don’t know where to get started, what should they learn, what projects they need to develop, etc.

     But….contentedly, to make things much easier for all the beginners – GeeksforGeeks is coming up with a striking opportunity, a Free Python Course for Beginners!

     Course Details  

     It is actually a workshop-based course which is designed in such a manner that it entails a variety of theory along with activities to let your child understand...

     Check all answers on Geeksforgeeks

     3/5

   • Programming Languages for writing GUI application

     Top Answer

     Answered Dec 04, 2009 · 12 votes

     You could reverse your question : what toolkits are there, and which languauges do they support?

     For Example GTK : (from wikipedia)

     C GTK+ C++ gtkmm Ruby ruby-gtk2 Python PyGTK Java java-gnome .NET Gtk# PHP PHP-GTK Perl Gtk2-Perl

     You can find support for many languages if you explore these other widget toolkits :

     Juce — An extensive cross-platform UI toolkitFLTK — A light, cross platform, non-native widget toolkitFOX toolkit — A fast, open source, cross-platform widget toolkitGTK+ — The GIMP toolkit, a widget toolkit used by GNOME applicationsIUP_(software) -- IUP cross platform static/dynamic library C/LUA, Lua (MIT) licenceJX Application FrameworkMicrosoft Foundation Class - The most commonly used widgeting toolkit for Windows.MotifObject Windows Library & OWLNextQt — A widget toolkit used by KDEStandard Widget Toolkit — SWT for JavaSwing — Java widget toolkitTk — Toolkit part of the Tcl - project and often used by Perl and Python programmersUltimate++Visual Component LibrarywxWidgets — A free widget toolkitXForms

     Other Answers

     Answered Nov 24, 2011 · 4 votes

     All sensible compilers should compile equivalent loops to identical assembly / IL code involving branches and jumps. (at least with optimizations enabled)

     Other Answers

     Answered Nov 24, 2011 · 3 votes

     On certain CPU architectures, the characteristics of the loop may provide opportunities for more optimization than the choice of for versus while.

     In particular, FORTRAN and Pascal recommended a constant (rather than a variable) for the number of loop iterations which some CPUs can optimize. For example, on a Cyber (a 1970s Iron Dinosaur mainframe), a 15-bit register holds the for loop index which can easily be compared. A while instead uses one or two of the harder-to-access 60-bit registers. Also, a Cyber branch instruction is considerably more expensive than the loop housekeeping, or possibly the loop content. In such cases, a high level of optimization might unroll the loop to avoid all the overhead.

     However, modern code generators don't work like they used to: source code is turned into an intermediate parse structure which abstracts such choices away. In short, for versus while makes no difference.

     Check all answers on Stack Overflow

     4/5

   • Programming languages for distributed system

     Top Answer

     Answered Jul 23, 2010 · 22 votes

     Erlang, as described by Wikipedia:

     It was designed by Ericsson to support distributed, fault-tolerant, soft-real-time, non-stop applications.

     You might also want to read the Distributed Erlang section of their manual.

     However, note that Erlang is a functional language and will require a much different paradigm of thought as compared to C++.

     Check all answers on Stack Overflow

     5/5

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2. pwskills.com › blog › basic-programming-problems75 Basic Programming Problems And Tutorials For Practice

   pwskills.com › blog › basic-programming-problems

   • Cached

   1 day ago · 75 Basic Programming Problems and Tutorials for Practice. By Varun Saharawat | November 15, 2023. Solving Basic Programming Problems is the key to achieve success in coding challenges. Students must practice these basic programming problems!

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4. www.geeksforgeeks.org › best-way-to-learn-pythonBest way to learn python - GeeksforGeeks

   www.geeksforgeeks.org › best-way-to-learn-python

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   Apr 29, 2024 · Best way to learn python - GeeksforGeeks. Last Updated : 29 Apr, 2024. Python is a versatile and beginner-friendly programming language that has become immensely popular for its readability and wide range of applications.

5. teachcomputing.org › curriculum › key-stage-3Introduction to Python programming - Teach Computing

   teachcomputing.org › curriculum › key-stage-3

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   Apr 30, 2024 · Updated: 20 Apr 2021. This unit introduces learners to text-based programming with Python. The lessons form a journey that starts with simple programs involving input and output, and gradually moves on through arithmetic operations, randomness, selection, and iteration.

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7. www.geeksforgeeks.org › java-exercisesJava Exercises - Basic to Advanced Java Practice Programs ...

   www.geeksforgeeks.org › java-exercises

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   Apr 18, 2024 · Take a look at our free Java Exercises to practice and develop your Java programming skills. Our Java programming exercises Practice Questions from all the major topics like loops, object-oriented programming, exception handling, and many more. List of Java Exercises. Pattern Programs in Java. Array Programs in Java. String Programs in Java.

8. mikkegoes.com › javascript-practiceFree JavaScript Practice for Beginners: 8 Best JavaScript ...

   mikkegoes.com › javascript-practice

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   Apr 17, 2024 · Codecademy: Learn JavaScript. Learn JavaScript is Code c ademy’s free JavaScript course for beginners. Although the course is free per se, you only get access to a limited number of JavaScript exercises, practice challenges, and projects. If you are new to coding, this is more than enough to get started.

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10. subjectguides.york.ac.uk › coding › introductionIntroduction to coding - Coding: a Practical Guide - Subject ...

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