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import java.util.Scanner;
public class Main{
public static void main(String []args)
{
System.out.println("12.5四舍五入取整:"+Math.round(12.5));
System.out.println("-12.5四舍五入取整:"+Math.round(-12.5));
}
}
/*
输出结果:
12.5四舍五入取整:13
-12.5四舍五入取整:-12
*/