Use Character in Java

By / July 17, 2020

Back to: Java Tutorials

Char is primitive datatype. We declare char in java using single quotation mark (e.g.: ‘a’). For example: 

char aChar = 'a';

A character is not a string. But Java provides method to get a char from a string. Getting the first char of the following string:

String str = "Hello World";
char c1 = str.charAt(0); // c1 will hold H

We can print a char like this:

	System.out.println(c1); 
        Output: H

Getting ASCII value from char:

	String str = "Hello World";
	char c1 = str.charAt(0);
	int num = c1;
	System.out.println(num);
Output: 72 (ASCII code for H)

Getting/converting integer value from char:

	String str = "12345";
	char c1 = str.charAt(0);
	int num = Character.getNumericValue(c1);  
	System.out.println(num);
output: 1