ceil : Java Glossary

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ceil
To take a float or double and want the corresponding integer (possibly as a float, double, int or long) there are four basic algorithms you might use: round, ceil, floor or truncate. With ceil (ceiling), numbers are always rounded up to the next integer. Use Math.ceil and the description of covered quotient division.
value ceil
-1.6 -1
-1.5 -1
-1.4 -1
+1.4 +2
+1.5 +2
+1.6 +2
division
floating point
floor
modulus
round
truncate
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