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Java Type Casting Explained | Java for Beginners

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Type casting in Java is the process of converting one data type to another, analogous to fitting books into bags of different sizes, with automatic conversions being safe and manual ones potentially leading to data loss.

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[Music]

Welcome back to CodeChef. Imagine you

have different bags for your school

books. A bigger bag can easily carry a

smaller book, but trying to squeeze a

big book into a tiny bag will cut off

part of it. That's exactly what happens

in Java when we move values between

different data types. It's called type

casting. Think of type casting like bags

and books. A small book always fits into

a bigger bag, safe and automatic. But a

large book doesn't fit into a smaller

bag unless you trim its pages, and that

means losing part of it. Java works the

same way. Sometimes conversions are

automatic, and sometimes you need to do

them manually. In Java, type casting

means converting one data type into

another. There are two types. Implicit

casting where Java automatically

converts smaller to larger types like

int to double and explicit casting where

you manually convert larger to smaller

types like double to int using parenthesis.

parenthesis.

Here's a quick example. int num equals

10. Double result equals num. That's

implicit casting. Then double pi= 3.14.

int whole equals in parenthesis int pi.

That's explicit casting. In the first

case, Java safely converts 10 into 10.0.

In the second case, 3.14 becomes three

and the decimal part is cut off. A few

quick tips. Implicit casting always goes

from smaller to larger types. Bite to

Explicit casting is required when going

backward. And remember, explicit casting

can cause data loss, just like trimming

a book to fit into a smaller bag. Now

it's your turn. Try the beginnerfriendly

code chef problem called type casting

basics. Practice converting between

integer, double, and character to

strengthen your understanding.

Today you learned that type casting

converts one type into another. Implicit

casting is automatic and safe. Explicit

casting requires parentheses and may

lose data. [Music]

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Transcription YouTube :Java Type Casting Explained | Java for Beginners