Question

What will be the output of the given Java code after the calculation [note the data types]?

double fw = Math.pow (3,Math.ceil(2.12)); 

System.out.println ("FW=" + fw);

Answer 1

Math.ceil(2.12);

• The Math.ceil() method rounds a number upward to its nearest mathematical integer.
• 2.12 rounded up becomes 3.0 (returned as a double).

Math.pow(3,3.0);

• This calculates 3³ (3 × 3 × 3)
• The result is 27, but since it Math.pow() always returns a double, it evaluates to 27.0.
• FW = 27.0