roundingnumbers.java

来自「Thinking in JAVA第四版源代码」· Java 代码 · 共 20 行

//: operators/RoundingNumbers.java
// Rounding floats and doubles.
import static net.mindview.util.Print.*;

public class RoundingNumbers {
  public static void main(String[] args) {
    double above = 0.7, below = 0.4;
    float fabove = 0.7f, fbelow = 0.4f;
    print("Math.round(above): " + Math.round(above));
    print("Math.round(below): " + Math.round(below));
    print("Math.round(fabove): " + Math.round(fabove));
    print("Math.round(fbelow): " + Math.round(fbelow));
  }
} /* Output:
Math.round(above): 1
Math.round(below): 0
Math.round(fabove): 1
Math.round(fbelow): 0
*///:~