9. Java Type Conversion & Casting Explained | Implicit vs Explicit Casting

In this video, we explore the critical concepts of Type Conversion and Type Casting in Java. While every variable needs a specific type (like int, float, or byte), you cannot simply change a variable's type once declared. However, you can assign values from one type to another using conversion techniques.
Key Topics Covered:
• Implicit Conversion (Widening): Learn how Java automatically handles assigning a smaller value (like byte) to a larger variable type (like int).
• Explicit Casting (Narrowing): Understand how to manually convert a larger type to a smaller one using casting syntax, such as (byte) a.
• Data Loss & Modulo Operations: We demonstrate what happens when a value exceeds the range of the target type. See why casting the integer 257 to a byte results in 1 due to the modulus operator.
• Float to Int Casting: Learn how casting a float (e.g., 5.6) to an integer results in the loss of decimal values.
• Type Promotion: Discover how Java promotes types automatically during arithmetic operations (e.g., byte * byte becoming an integer) to prevent data loss.
• Java 14+ Shortcut: A quick tip on compiling and running Java code in a single step using newer JDK versions.
Master the difference between automatic conversion and explicit casting to write error-free Java code!

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