Rewrite the following program segment using while instead of for loop.

int f = 1, i; 
for(i = 1; i <= 5 ; i++)
{
    f *= i; 
    System.out.println(f);
}

State the method that

(a) converts a string to a primitive float data type.

(b) determines if the specified character is an uppercase character.

Give the output of the following expression, when a = 6.

a += ++a + a++ + a-- + a-- + --a + ++a

Predict the output of the following.

(a) Math.pow(2.5, 2) + Math.ceil(5)

(b) Math.round(2.9) + Math.log(1)