Calculator -- 4

I urgently need a Modification (Attached) JAVA CALCULATOR for Large Numbers; to handle thousands of digits. This is missing right-clicking Copy & Paste on inputs and output and Output (Results) is not showing digits after 73 digits. I need big inputs, output and small digits. If I can’t get it by tomorrow, don’t bid! Im using java 8 and it will not work on latest javas. Please if you can’t do it, don’t waste your time and my time. Thank you!

This Calculator is like: (x times y) - (z)

In put1 = a number
Input2 = a number
Input3 = a number (smaller than input1)
Output = Result

Calculate= button to give the results
Reset = Reset button

Example:

Input1= 13
Input2=8
Input3=5

The first ‘’Calculate’’ will give 99
The second ‘’Calculate’’ will give 787
The third ‘’Calculate’’ will give 6291
And so on…