what does the % % mean in java?

java printf format-specifiers
ajsie picture ajsie · Jan 8, 2010 · Viewed 10.6k times · Source

Im a PHP-programmer and wonder what this line means.

System.out.printf("exp(%.3f) is %.3f%n", x, Math.exp(x))

what does %.3f, %.3f%n and the comma x means?

Answer

Doug Porter picture Doug Porter · Jan 8, 2010

It is similar to C's printf:

http://java.sun.com/j2se/1.5.0/docs/api/java/util/Formatter.html#syntax

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