An if-else statement allows a program to execute different blocks of code based on whether a specified condition evaluates to true or false. It is fundamental for decision-making, enabling programs to respond to different inputs or states by choosing appropriate execution paths. For example, it can check user input validity, control program flow, or implement logic branches.
An if-else statement is a control structure that allows a program to choose between two paths: if the condition is true, one block of code runs; if it is false, the alternative block runs, enabling decision-making based on logic or data.