你可以在代码中明确抛出异常。 Scala提供throw关键字引发异常。 throw关键字主要用于引发自定义异常。下面给出一个使用scala throw exception关键字的示例。
Scala投掷示例
class ExceptionExample2{
def validate(age:Int)={
if(age<18)
throw new ArithmeticException("You are not eligible")
else println("You are eligible")
}
}
object MainObject{
def main(args:Array[String]){
var e = new ExceptionExample2()
e.validate(10)
}
}
输出
java.lang.ArithmeticException: You are not eligible
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