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Summary of three basic interview questions

2022-06-27 08:31:00 C_ x_ three hundred and thirty

Catalog

Round 

 Java Heap memory   classification

Force conversion small calculation  


Round 

Math.round(11.5)  How much  (). Math.round(-11.5)  How much  (  ).

12 -11

floor : It means floor , Point down and round , Returns the largest integer not greater than it

ceil : It means ceiling , Point up and round , Returns the smallest integer that is not less than it

round : It means about 

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