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Tag: parseint

Integer.parseInt() and Integer.toString() runtime

Would the runtime of Integer.parseInt(String i) and Integer.toString(int i) both be O(n)? Answer Yes both of them Integer.parseInt(“1000”) and Integer.toString(1000) have time complexity O(N) The internal code of Integer.parseInt(“1000”) reads the the strings char by char and covert to decimal in while loop The internal code of Integer.toString(1000) reads the integers and convert every digit to char and stores in

How can I overcome ArrayIndexOutOfBoundException for Integer.parseInt(args[0])? [duplicate]

This question already has answers here: String[] args parameter: java.lang.ArrayIndexOutOfBoundsException (3 answers) What causes a java.lang.ArrayIndexOutOfBoundsException and how do I prevent it? (26 answers) Closed 1 year ago. I’ve seen below code in one of the video tutorial.There its executes fine but while I’m trying to execute in my system, it is compiling fine but I’m getting runtime error saying,

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