| [Scala] java使用scala的jar包问题:Exception in thread "main" java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.Short | 您所在的位置：网站首页 › scala tuple3 › [Scala] java使用scala的jar包问题:Exception in thread "main" java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.Short |
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场景
刚写的scala处理bmp文件的实验, 打了jar包让java调用一下, 结果发生这个错误. package org.tanglizi.bmp.demo; import org.tanglizi.bmp.image.BmpImage; import scala.Tuple3; public class Application { public static void main(String[] args) { BmpImage image = BmpImage.create(200, 100); image = image.fill(new Tuple3(127, 0, 100)); image.save("example.bmp"); } } Exception in thread "main" java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.Short at scala.runtime.BoxesRunTime.unboxToShort(BoxesRunTime.java:96) at org.tanglizi.bmp.image.BmpWriter$.$anonfun$toBytes$2(BmpWriter.scala:14) at scala.collection.immutable.List.foreach(List.scala:312) at org.tanglizi.bmp.image.BmpWriter$.$anonfun$toBytes$1(BmpWriter.scala:13) at org.tanglizi.bmp.image.BmpWriter$.$anonfun$toBytes$1$adapted(BmpWriter.scala:12) at scala.collection.immutable.List.foreach(List.scala:312) at org.tanglizi.bmp.image.BmpWriter$.toBytes(BmpWriter.scala:12) at org.tanglizi.bmp.image.BmpImage.save(BmpImage.scala:18) at org.tanglizi.bmp.image.BmpImage.save(BmpImage.scala:14) at org.tanglizi.bmp.demo.Application.main(Application.java:11) Process finished with exit code 1 解决方法范型问题, Tuple3应该为Tuple3 为了简化代码, 改为new Tuple3((short)127, ...) 原文地址：https://www.cnblogs.com/tanglizi/p/12013171.html |
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