This can be done in two ways, using for loop or using iterator of ArrayList,use of for loop is faster than using iterator bcoz value stored in arraylist is indexed access. So while accessing the value is accessed directly as per the index.
What is the simples way to check if the sum of two unsigned integers has resulted in an overflow.
I want to convert a string say "98989" into an integer without using any library functions in java. Give fastest way to do it and explain why your method is best.
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