What is the difference between compile time and runtime

These programming languages have a syntax similar to the English language. High-level languages are easily understandable by humans but they are not understandable by the computer. Therefore, the written program or the source code should be converted into machine understandable format. It is called the machine code. The time period to convert the source code to machine code is known as compile time.

Tasks such as syntax analysis, semantic analysis, and code generation occur at compile time. Time period to run the executable file generated at compile time is referred as runtime.

Both are terms related to different program lifecycle phases. This article discusses the difference between compile time and runtime. The key difference between compile time and run time is that compile time is the programming life cycle phase that converts the source code into an executable file while runtime refers to the programming life cycle phase that runs the executables generated at compile time.

The errors occurring at compile time are known as compile-time errors and errors occurring at runtime are known as exceptions. Overview and Key Difference 2. What is Compile Time 3. What is Runtime 4. Similarities Between Compile Time and Runtime 5. Related Articles. Table of Contents. Save Article. Improve Article. Like Article. Recommended Articles. Article Contributed By :. How to avoid having class data shared among instances in Python?

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Contact No. This is when the code is translated from a programming language to a language that a machine understands. This is when a code is run in the runtime environment and starts from the time code execution starts till the point the user or OS stops the code. After the software development is complete, it comes into play when the code is executed in a runtime environment.

The code cannot understand which object is invoking the method, and code is compiled without knowing that information.