Examples of Conversion from Char to Int

Input : ch = ‘3’
Output : 3

Input : ch = ‘9’
Output : 9

Integer: The Integer or int data type is a 32-bit signed two’s complement integer. Its value range lies between – 2,147,483,648 (-2^31) to 2,147,483,647 (2^31 -1) (inclusive). Its minimum value is – 2,147,483,648 and its maximum value is 2,147,483,647. Its default value is 0. The int data type is generally used as a default data type for integral values unless there is no problem with memory.

Example:

int a = 10

Character: The char data type is a single 16-bit Unicode character. Its value range lies between ‘\u0000’ (or 0) to ‘\uffff’ (or 65,535 inclusive). The char data type is used to store characters.

Example:

char ch = 'c'

Given a character in Java, your task is to write a Java program to convert this given character into an integer. In Java, we can convert the Char to Int using different approaches. If we direct assign a char variable to int, it will return the ASCII value of a given character. If the char variable contains an int value, we can get the int value by calling the Character.getNumericValue(char) method. Alternatively, we can use String.valueOf(char) method.