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I would check by creating a BigInteger from an entered String and then ascertain if &gt;&nbsp;Long.MAX_VALUE. If so, you can't handle the calc with primitives
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I would check by creating a BigInteger from an entered String and then ascertain if > Long.MAX_VALUE. If so, you can't handle the calc with primitives

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I'm going to build a mini calculator that does multiplication, subtration and addition. Now, when I ask the user for a value of course the number can be very small or very large in size. Now my questions is that when I do an operation on these vales to get a new value with Java be able to hanldle a number that is very large in size or do I have to do some bit manipulation to handle and calculate the number. For example if the user puts in 1000000 * 45645554 and I get an answer with a operation function that I make will that be hard for Java to compute and if so what is the best way to go about coming up with a solution for this. Example of this would be great for me. 
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I'm going to build a mini calculator that does multiplication, subtration and addition. Now, when I ask the user for a value of course the number can be very small or very large in size. Now my questions is that when I do an operation on these vales to get a new value with Java be able to hanldle a number that is very large in size or do I have to do some bit manipulation to handle and calculate the number. For example if the user puts in 1000000 * 45645554 and I get an answer with a operation function that I make will that be hard for Java to compute and if so what is the best way to go about coming up with a solution for this. Example of this would be great for me. 

Question on value of digits

Java is a platform-independent, object-oriented programming language and run-time environment, designed to have as few implementation dependencies as possible such that developers can write one set of code across all platforms using libraries. Most devices will not run Java natively, and require a run-time component to be installed in order to execute a Java program.