Aug 5, 2012 · If you need you can use below tested code to convert string into number if your string contains only numbers and alphabets. public static Long getNumericReferenceNumber(String str) { String result = ""; for (int i = 0; i < str.length(); i++) { char ch = str.charAt(i); if (Character.isLetter(ch)) { char initialCharacter = Character.isUpperCase(ch) ?

May 18, 2012 · Let's say I have a program which converts letters to numbers such that: Input: abcd Output: 1234 How can I convert abcd to 1234 efficiently and how can I extract every individual char from the to...

Jun 25, 2018 · Java Code: public static String toAlphabetic(int i) { if( i<0 ) { return "-"+toAlphabetic(-i-1); } int quot = i/26; int rem = i%26; char letter = (char)((int)'A' + rem); if( quot == 0 ) { return ""+letter; } else { return toAlphabetic(quot-1) + letter; } }

Learn how to convert alphabetic characters in a string to their corresponding numerical values using Java. Detailed code examples included.

Feb 12, 2024 · We will look at how to convert a string to numeric types in Java in this tutorial. In Java, we may utilize the wrapper classes and their corresponding parse methods to transform a string to a numeric type.

Sometimes you need to convert a number to a string because you need to operate on the value in its string form. There are several easy ways to convert a number to a string: // Concatenate "i" with an empty string; conversion is handled for you. or. // The valueOf class method.

Apr 23, 2025 · We can convert the char value to an int value using type casting (changing the data type from char to int ). This is the easiest way to convert the Character to an Integer value.

Apr 3, 2015 · Tool to convert letters to numbers and vice versa using the alphanumeric code A1Z26 (A=1, B=2, C=3).

Nov 24, 2010 · How about using c-'A'+1 to convert the letter in c to the number you want? Calculating the next place would be the same except add 27 instead.

Jul 3, 2019 · Converting Numbers to Strings . To make a number into a String follows the same sort of pattern as the String class has a valueOf method too. It can take any of the primitive data type numbers as an argument and produce a String: