variable swapping

Cognitive Technology Team

Mar 23, 2025 · Fundamentals

Swapping Two Variables in Java Without a Temporary Variable

This tutorial explains how to exchange the values of two Java variables without using a temporary variable, covering three techniques—arithmetic addition/subtraction, multiplication/division, and bitwise XOR—along with complete code examples, step‑by‑step explanations, output results, and discussion of each method’s advantages, limitations, and appropriate use cases.

ArithmeticBitwise OperationsJava

0 likes · 7 min read

Swapping Two Variables in Java Without a Temporary Variable

Python Programming Learning Circle

Dec 27, 2023 · Fundamentals

Four Python Tricks to Speed Up Execution by 10–20%

This article presents four practical Python performance tricks—list reversal, variable swapping, in‑function looping, and reducing function calls—demonstrating how each can shave 10‑20% off execution time with clear code examples and timing benchmarks.

Pythoncode optimizationlist reversal

0 likes · 6 min read

Four Python Tricks to Speed Up Execution by 10–20%

IT Services Circle

Feb 7, 2022 · Fundamentals

Understanding Python’s a,b = b,a Variable Swap: Bytecode, Stack Operations, and Evaluation Order

This article explains how Python’s elegant a,b = b,a variable swap works under the hood by examining bytecode, stack manipulation with ROT_TWO, evaluation order nuances, and the differences when swapping more than two variables, providing clear code examples and interpreter insights.

InterpreterPythonbytecode

0 likes · 9 min read

Understanding Python’s a,b = b,a Variable Swap: Bytecode, Stack Operations, and Evaluation Order