blankfinal.java

来自「程序练习中包括书中实例程序代码和练习中要用到的代码,是压缩文件」· Java 代码 · 共 18 行

package examples.errors;
/** A class defined to create intentionally
  * an error with blank finals
  */
public class BlankFinal {
   public static void main ( String[] args ) {
      final int y = 6;
      final int z;
      y = 0;      // Error! Value already fixed
      if ( y > 0 ) {
         z = 12;   // Okay.  No previous value
      } else {
         z = -12;  // Okay.  No previous value
      }
      z = 13;      // Error! Value already fixed
      System.out.println( "The answer is " +  z/y );
   }
}