can't understand a java statement - please help

[Moham12345]

hi,
im converting a program and can't understand a statement please can
you help

this is the statement

double s_star = (s_star_raw > s0) ? s_star_raw : s0;

so ok.. .if

s_star_raw = 15
s0 = 3

what is s_star?

thank you for helping.

 

[Jeff Higgins]

hi,
im converting a program and can't understand a statement please can
you help

this is the statement

double s_star = (s_star_raw > s0) ? s_star_raw : s0;

so ok.. .if

s_star_raw = 15
s0 = 3

what is s_star?

thank you for helping.

if s_star_raw is greater than s0 then s_star equals s_star_raw otherwise
s_star equals s0

 

[Jeff Higgins]

if s_star_raw is greater than s0 then s_star equals s_star_raw otherwise
s_star equals s0

also see Conditional Operator (?
http://java.sun.com/docs/books/jls/third_edition/html/expressions.html#15.25

 

[Tom Hawtin]

if s_star_raw is greater than s0 then s_star equals s_star_raw otherwise
s_star equals s0

Or to put it more sensibly:

double sStar = Math.max(sStarRaw, s0);

Tom Hawtin

 

[Sherm Pendley]

im converting a program and can't understand a statement please can
you help

this is the statement

double s_star = (s_star_raw > s0) ? s_star_raw : s0;

The expression "(test) ? true_value : false_value" evaluates to true_value
if test is true, or false_value if not.

In other words, the above is equivalent to this:

double s_star;
if (s_star_raw > s0) {
s_star = s_star_raw;
} else {
s_star = s0;
}

sherm--

 

[Ian Shef]

hi,
im converting a program and can't understand a statement please can
you help

this is the statement

double s_star = (s_star_raw > s0) ? s_star_raw : s0;

so ok.. .if

s_star_raw = 15
s0 = 3

what is s_star?

thank you for helping.

I could give you the answer, but then what would you learn? Here is a
clue.

The expression

a?b:c

provides a value of "b" if "a" is true, otherwise it provides a value of
"c".

(The double quotes I used are meant as separators and not as indicators of
a String).

This should be enough of a clue to figure it out. If not, then you had
better back up and study Java some more.

Good Luck!