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Java

134The if Statement: Basic Conditional Execution
135The else Clause: Handling the Alternative Path
136The else if Ladder: Multiple Conditions
137Block Statements vs Single Statements
138Nested if Statements: Multi-Level Decisions
139Logical Operators in Conditions: && and ||
140Short-Circuit Evaluation: Efficiency and Safety
141Common Pitfalls: Assignment vs Comparison
142Refactoring Complex Conditionals: Readability Techniques
143Dangling else Problem: Ambiguity in Nested Conditionals
144Traditional switch Syntax and Case Labels
145Fall-Through Behavior in Traditional switch
146The default Case and Exhaustiveness
147Switch with Primitive Types: int, byte, short, char
148Switch with String and Enum Types
149Switch Expressions (Java 12+): Arrow Syntax
150Switch Expressions: Yielding Values
151Exhaustiveness in Switch Expressions
152Multiple Case Labels in One Branch
153Switch Expressions vs Statements: When to Use Which
154Pattern Matching in switch (Preview/Java 17+)
155Null Handling and Switch Behavior
156The while Loop: Basic Syntax and Execution Flow
157Writing Effective while Loop Conditions
158Loop Control Variables and Counting Patterns
159The do-while Loop: Guaranteed First Execution
160Choosing Between while and do-while
161Sentinel Values and Input Validation Loops
162Nested while Loops and Common Pitfalls
163Infinite Loops: Intentional and Accidental
164while Loops vs for Loops: When to Use Which
165The Traditional for Loop: Syntax and Components
166Executing for Loops: Step-by-Step Evaluation Order
167Common for Loop Patterns: Counting Up and Down
168Multiple Variables in for Loop Initialization and Update
169Omitting for Loop Components: Infinite Loops
170Nested for Loops: Processing Multidimensional Data
171The Enhanced for Loop (for-each): Syntax and Purpose
172Enhanced for Loop Limitations: No Index or Modification
173Iterating Arrays with Enhanced for Loops
174Enhanced for Loops and the Iterable Interface
175Choosing Between Traditional and Enhanced for Loops
176The break Statement in Loops
177The continue Statement in Loops
178break vs continue: When to Use Each
179break in switch Statements
180Labeled Statements: Syntax and Purpose
181break with Labels: Exiting Nested Loops
182continue with Labels: Skipping Outer Loop Iterations
183Practical Use Cases for Labeled Statements
184Avoiding Labeled Statements: Refactoring Alternatives
185Common Pitfalls with break and continue
186Block Scope and Variable Lifetime
187Scope in if Statements
188Scope in Loop Bodies
189Loop Variable Scope in for Loops
190Variable Shadowing in Nested Blocks
191Declaring Variables Before Control Structures
192Scope and Switch Statements
193Best Practices for Variable Scope

Java

134The if Statement: Basic Conditional Execution
135The else Clause: Handling the Alternative Path
136The else if Ladder: Multiple Conditions
137Block Statements vs Single Statements
138Nested if Statements: Multi-Level Decisions
139Logical Operators in Conditions: && and ||
140Short-Circuit Evaluation: Efficiency and Safety
141Common Pitfalls: Assignment vs Comparison
142Refactoring Complex Conditionals: Readability Techniques
143Dangling else Problem: Ambiguity in Nested Conditionals
144Traditional switch Syntax and Case Labels
145Fall-Through Behavior in Traditional switch
146The default Case and Exhaustiveness
147Switch with Primitive Types: int, byte, short, char
148Switch with String and Enum Types
149Switch Expressions (Java 12+): Arrow Syntax
150Switch Expressions: Yielding Values
151Exhaustiveness in Switch Expressions
152Multiple Case Labels in One Branch
153Switch Expressions vs Statements: When to Use Which
154Pattern Matching in switch (Preview/Java 17+)
155Null Handling and Switch Behavior
156The while Loop: Basic Syntax and Execution Flow
157Writing Effective while Loop Conditions
158Loop Control Variables and Counting Patterns
159The do-while Loop: Guaranteed First Execution
160Choosing Between while and do-while
161Sentinel Values and Input Validation Loops
162Nested while Loops and Common Pitfalls
163Infinite Loops: Intentional and Accidental
164while Loops vs for Loops: When to Use Which
165The Traditional for Loop: Syntax and Components
166Executing for Loops: Step-by-Step Evaluation Order
167Common for Loop Patterns: Counting Up and Down
168Multiple Variables in for Loop Initialization and Update
169Omitting for Loop Components: Infinite Loops
170Nested for Loops: Processing Multidimensional Data
171The Enhanced for Loop (for-each): Syntax and Purpose
172Enhanced for Loop Limitations: No Index or Modification
173Iterating Arrays with Enhanced for Loops
174Enhanced for Loops and the Iterable Interface
175Choosing Between Traditional and Enhanced for Loops
176The break Statement in Loops
177The continue Statement in Loops
178break vs continue: When to Use Each
179break in switch Statements
180Labeled Statements: Syntax and Purpose
181break with Labels: Exiting Nested Loops
182continue with Labels: Skipping Outer Loop Iterations
183Practical Use Cases for Labeled Statements
184Avoiding Labeled Statements: Refactoring Alternatives
185Common Pitfalls with break and continue
186Block Scope and Variable Lifetime
187Scope in if Statements
188Scope in Loop Bodies
189Loop Variable Scope in for Loops
190Variable Shadowing in Nested Blocks
191Declaring Variables Before Control Structures
192Scope and Switch Statements
193Best Practices for Variable Scope

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Lesson 156 of 2,870·4. Control Flow StructuresPro lesson

The while Loop: Basic Syntax and Execution Flow

Learn the structure of while loops, how condition evaluation works before each iteration, and basic examples.

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