'How do I round to the nearest ten? [duplicate]

How can I round a number to the nearest ten with no if statements? For example, 98 to 100.

int num = 87;
double t;
double d = 1.0 * num; // d = 87.0
t = d/100;
System.out.println(t);
javarounding


Solution 1:[1]

You can use Math.round(num/10.0) * 10.

Solution 2:[2]

answer = ((num+5)/10)*10; // if num is int

where num is int and to have more idea, read this quesiton. How to round a number to n decimal places in Java.
Edit:
if num is double add typecasting to expression (long)((num+5)/10) as suggested by @PeterLawrey

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Solution Source
Solution 1
Solution 2 Community

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