异常处理是一种用于处理异常情况的机制。你还可以避免程序意外终止。
Scala使”选中与未选中”非常简单。它没有检查的异常。在Scala中, 所有异常均未选中, 甚至SQLException和IOException也未选中。
没有异常处理的Scala程序示例
class ExceptionExample{
def divide(a:Int, b:Int) = {
a/b // Exception occurred here
println("Rest of the code is executing...")
}
}
object MainObject{
def main(args:Array[String]){
var e = new ExceptionExample()
e.divide(100, 0)
}
}
输出
java.lang.ArithmeticException: / by zero
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