castingnumbers.java

来自「网络书店的设计与实现 网络书店的设计与实现」· Java 代码 · 共 25 行

//: c03:CastingNumbers.java
// From 'Thinking in Java, 2nd ed.' by Bruce Eckel
// www.BruceEckel.com. See copyright notice in CopyRight.txt.
// What happens when you cast a float 
// or double to an integral value?

public class CastingNumbers {
  public static void main(String[] args) {
    double
      above = 0.7,
      below = 0.4;
    System.out.println("above: " + above);
    System.out.println("below: " + below);
    System.out.println(
      "(int)above: " + (int)above);
    System.out.println(
      "(int)below: " + (int)below);
    System.out.println(
      "(char)('a' + above): " +
      (char)('a' + above));
    System.out.println(
      "(char)('a' + below): " +
      (char)('a' + below));
  }
} ///:~