Infinite while loop in Java

In The following infinite while loop in Java. It will give compile-time error .

while(true)

{

     System.out.println("hello...");

}

System.out.println("End of while"); //Unreachable statement - compiler-error.

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The following same infinite while loop, however works and does not gives any errors in which I just replaced the condition with a boolean variable.

boolean v=true;

while(v)

{

     System.out.println("hello..");

}

System.out.println("End Of While"); //No error here.

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In the second case also, the statement after the loop is obviously unreachable because the boolean variable v is true still the compiler doesn not gives any error. Why?

Ans:

The first Statement always result in an infinite loop because we have specify a constant in condition of while loop, where as in second case compiler assume that, there is possibility of change of value of v inside loop.