Learn C++ Step by Step is a beginner-friendly programming blog that teaches C++ from basics to advanced concepts with simple explanations, real-world examples, and practical programs. Perfect for students, exams, interviews, and coding practice.
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Introduction In real life, we take decisions every day. If it is raining, take an umbrella If marks are good, celebrate Else, study harder Similarly, in programming, we often need to make decisions . In C++, this decision-making is done using the if–else statement . The if–else statement allows a program to choose different paths of execution based on conditions. What is an If–Else Statement? An if–else statement checks a condition and executes code based on whether the condition is true or false . If the condition is true , the if block runs If the condition is false , the else block runs This helps the program behave intelligently instead of running the same code every time. Why Do We Need If–Else in C++? Without decision-making statements: Programs would run only in one direction No logical thinking would be possible Real-world problems cannot be solved Uses of if–else: Checking age eligibility Student grading system Login validation ...
C++ is a powerful programming language used to build software, games, operating systems, and applications. In this blog, I will explain C++ from basic to advanced in very simple language. Topics you will learn: - What is C++ - How C++ works - Input and Output in C++ - Loops and Conditions - Programs with examples Stay connected to learn C++ step by step.
Introduction The if–else statement is one of the most important decision-making statements in C++ programming . It allows a program to execute different blocks of code based on a condition. If you are a beginner , preparing for: College exams Coding interviews Competitive programming then practicing if–else questions is very important. 👉 In this article, you will learn 20 important if–else statement questions in C++ with answers and examples . What is IF–ELSE Statement in C++? The if–else statement is used to check conditions . Syntax: if (condition) { // code if condition is true } else { // code if condition is false } 20 Important IF–ELSE Statement Questions in C++ 1. Program to check whether a number is even or odd int n = 10 ; if (n % 2 == 0 ) cout << "Even" ; else cout << "Odd" ; ✅ Output: Even 2. Check whether a number is positive, negative or zero int n = -5 ; if (n > 0 ) cout ...
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