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Commit 932b96a

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Ram swaroop

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Lines changed: 11 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -273,8 +273,10 @@ class Casting {`
`273`	`273`	`}`
`274`	`274`	`{% endhighlight %}`
`275`	`275`
`276`		`-There is another rule which you must be aware of, i.e, __the result of an expression involving anything int-sized or`
`277`		-smaller is always an `int`__. Check this out:
	`276`	`+#### There are some rules which you must be aware of:`
	`277`	`+`
	`278`	+* The result of an expression involving anything int-sized or smaller is always an `int`, so we must explicitly cast
	`279`	`+it. Check this out:`
`278`	`280`
`279`	`281`	`{% highlight java %}`
`280`	`282`	`byte a = 3; // No problem, 3 fits in a byte`
`@@ -301,6 +303,13 @@ byte c = (byte) (a + b);`
`301`	`303`
`302`	`304`	`solves the issue.`
`303`	`305`
	`306`	`+* In case of compound assignment operators, explicit cast isn't required. The below code compiles just fine:`
	`307`	`+`
	`308`	`+{% highlight java %}`
	`309`	`+byte b = 3;`
	`310`	`+b += 7; // No problem - adds 7 to b (result is 10)`
	`311`	`+{% endhighlight %}`
	`312`	`+`
`304`	`313`	`#### What happens when you cast a large value to store it in a small container`
`305`	`314`
`306`	`315`	`When you do a explicit cast, the compiler just keeps __the number of bits (from right)__ that the variable type can hold`

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