Conceptually , it is similar to a program shortcut that you use to run a program or open a file 從概念上說,它與用于運行程序或打開文件的程序快捷方式類似。
Both of these programming shortcuts allow programmers to write java code without bothering with all of the nagging errors from the compiler and without bothering to specify or catch any exceptions ,對于程序員來說是有吸引力的。這些編程捷徑都允許程序員編寫java代碼而不會受到來自編譯器的所有挑剔性錯誤的干擾,并且不用去指定或者捕獲任何異常。