Question

What is the value stored in variable p given below:
double p = Math.pow ("1234", indexOf('4"), 3);​

Answer 1

$\tt \green{double \: p = Math.pow ("1234".indexOf("4"), 3);} \\ \tt > > Math.pow (3, 3) \\ \underline{ \orange{\boxed{ \green{\boxed{ \orange{ > > 9.0} }}}}}$

Explaination:-

• $\tt \boxed{ \tt \: index \over \tt characters} = > \boxed{ 0 |1 |2 |3\over1 |2 |3 |4 }$
• The above shows the string "1234" above which the index of each characters are given.
• Remember: Index starts with 0.
• indexOf() returns the index of character given in the parameter.
• Here the string is "1234" of whose index of 4 we have to find.
• Refer to the first point which shows index of each character . As we can see, index of "4" is 3

Now,

Math.pow(3,3)

>>9.0

• Because Math.pow() returns number raised to power other number in double data type.

Correct Answer:-

• 9.0

Answer 2

$\large { \fcolorbox{gray}{black}{ ✔\: \textbf{Verified \: answer}}}$

doublep=Math.pow("1234".indexOf("4"),3);

>>Math.pow(3,3)

>>9.0