castneeded.java

来自「Documents and Settings ew桌面新建文件夹castingn」· Java 代码 · 共 16 行

/** Casting Demo. */
public class CastNeeded {
  //+
  public static void main(String[] argv) {
    int i;
    double j = 2.75;
  //  i = j;      // EXPECT COMPILE ERROR
    i = (int)j;    // with cast; i gets 2
    System.out.println("i =" + i);
    byte b;
  //  b = i;      // EXPECT COMPILE ERROR
    b = (byte)i;  // with cast, i gets 2
    System.out.println("b =" + b);
  }
  //-
}