Java Conditional Statements if-else: Master Branch Logic Easily with Examples

Java conditional statements (if-else) are used for branch logic, allowing execution of different code blocks based on condition evaluation, replacing fixed sequential execution to handle complex scenarios. Basic structures include: single-branch `if` (executes code block when condition is true), dual-branch `if-else` (executes distinct blocks for true/false conditions), and multi-branch `if-else if-else` (evaluates multiple conditions sequentially, with `else` handling remaining cases). Key notes: Use `==` for condition comparison (avoid assignment operator `=`); order conditions carefully in multi-branch structures (e.g., wider score ranges first in score judgment to prevent coverage); always enclose code blocks with curly braces to avoid logical errors. Advanced usage involves nested `if` for complex judgments. Mastering these fundamentals enables flexible handling of most branching scenarios.