Check whether the character is ASCII 7 bit numeric and character in Java
Description
The following code shows how to check whether the character is ASCII 7 bit numeric and character.
Example
/* w w w . j ava 2 s. co m*/
public class Main {
public static boolean isAsciiAlphanumeric(char ch) {
return (ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z')
|| (ch >= '0' && ch <= '9');
}
public static void main(String[] argv) {
System.out.println(isAsciiAlphanumeric('a'));
System.out.println(isAsciiAlphanumeric('A'));
System.out.println(isAsciiAlphanumeric('3'));
System.out.println(isAsciiAlphanumeric('-'));
System.out.println(isAsciiAlphanumeric('\n'));
}
}
The code above generates the following result.
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