Lungi Dance

Computer Science Level 3

observe the following coding in Java and find how many times will "Lungi Dance" printed??

     int a=12<<3+7>>8;
    for(int i=1;i<=a;i++)
    System.out.println("Lungi Dance");

log on to comprogzz.in for more "Lungi Dance" program

The answer is 48.

3 solutions

Sudip Maji
Jul 28, 2014

Left shift num by n means: Multiply num by $2^n$

Right shift num by n means: Divide num by $2^n$

Now here we have nothing special to do with the loop, if we calculate a then it's the answer straightway cause a means the number of iterations of the loop

$a = 12<< 3+7 >> 8$

$a = 12 << 10 >> 8$

That means:

$a = \frac {12 * 2^{10}}{2^8}$

$a = 12 * 2^2$

$a = 12 * 4$

$a= 48$

thank you :D

Abhi Shek - 6 years, 9 months ago

Code 0987
Jul 11, 2014

$\because i=1;i<=a\\\Rightarrow a \ iterations$ $\\\begin{aligned}\therefore a &=12<<3+7>>8 \\&= 12<<10>>8 \\&= 12288>>8 \\&= 48\end{aligned}$

Kartikay Shandil
Jul 9, 2014

THe Correct answer is 49 .... P.S. DO not log on to comprogzz.in ....

how?Please explain.

Chaitnya Shrivastava - 6 years, 10 months ago

thnku so much....:)

Raj Maiti - 5 years, 10 months ago

Lungi Dance

log on to comprogzz.in for more "Lungi Dance" program

The answer is 48.

3 solutions

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