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How to catch errors in java?

I created a basic binary calculator that has two inputs however, i have a problem. what if the user accidentally entered a symbol sign like ? + ( ) and more. how to prevent this? heres my code: https://code.sololearn.com/cp1Due5742B4/?ref=app please open my code using netbeans or eclipse or whatever. i really need help for this.

javaexceptionscalculatorcatchbinaryprogrammingjoptionpanetry-block
11th Mar 2018, 12:23 PM
The iPlay Android Team
The iPlay Android Team - avatar
1 Answer
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Hope this can help you https://www.sololearn.com/learn/Java/2175/
11th Mar 2018, 2:43 PM
Tomás Badenes
Tomás Badenes - avatar

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