numbers

I was reading the re-introduction to JavaScript on MDN and in the section Numbers it said that you can convert a string to a number simply by adding a plus operator in front of it. For example: +"42" which would yield the number output of 42. But further along in the section about Operators it says that by adding a string "something" to any number you can convert that number to a string. They also provide the following example which confused me: "3" + 4 + 5 would presumably yield a string of 345 in the output, because numbers 4 and 5 would also be converted to strings. However, wouldn't 3 + 4

Possible Duplicate: Convert String to another locale in java I want to convert a java String that contains english numbers to arabic one's so i make this int arabic_zero_unicode= 1632; String str = "13240453"; StringBuilder builder = new StringBuilder(); for(int i =0; i < str.length(); ++i ) { builder.append((char)((int)str.charAt(i) - 48+arabic_zero_unicode)); } System.out.println("Number in English : "+str); System.out.println("Number In Arabic : "+builder.toString() ); the out put Number in English : 13240453 Number In Arabic : ١٣٢٤٠٤٥٣ is there another more efficient way to do this ? This

I don't seem to understand how Integer.MAX_VALUE and Integer.MIN_VALUE help in finding the min and max value in an array. I understand how this method (pseudocode below) works when finding the min and max values: max = A[0], min = A[0] for each i in A if A[i] > max then max = A[i] if A[i] < min then min = A[i] But as for this method, I don't understand the purpose of Integer.MAX_VALUE and Integer.MIN_VALUE : import java.util.Scanner; class MyClass { public static void main(String[] args) { int[] numbers; // declaring the data type of numbers numbers = new int[3]; //assigning the number of

I'm practicing algorithms and one of my tasks is to count the number of all longest increasing sub-sequences for given 0 < n <= 10^6 numbers. Solution O(n^2) is not an option. I have already implemented finding a LIS and its length ( LIS Algorithm ), but this algorithm switches numbers to the lowest possible. Therefore, it's impossible to determine if sub-sequences with a previous number (the bigger one) would be able to achieve the longest length, otherwise I could just count those switches, I guess. Any ideas how to get this in about O(nlogn) ? I know that it should be solved using dynamic

I'd like to know the simplest code to dismiss the number pad keyboard when tapping anywhere outside the number pad. It's a simple application to input a number inside a text field and then a user can dismiss the keyboard after the user finishes typing the numbers on the text field. Thanks! :) Declaring the text field as instance variable or property if it isn't already and implementing a simple method like this: - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { [textField resignFirstResponder]; } will do just fine. Try this method, -(void)touchesBegan:(NSSet *)touches

How do you check whether a string contains only numbers? I've given it a go here. I'd like to see the simplest way to accomplish this. import string def main(): isbn = input("Enter your 10 digit ISBN number: ") if len(isbn) == 10 and string.digits == True: print ("Works") else: print("Error, 10 digit number was not inputted and/or letters were inputted.") main() if __name__ == "__main__": main() input("Press enter to exit: ") You'll want to use the isdigit method on your str object: if len(isbn) == 10 and isbn.isdigit(): From the isdigit documentation: str.isdigit() Return true if all