Assume that x is a char variable has been declared and already given a value. Write an expression whose value is true if and only if x is alphanumeric, that is either a letter or a decimal digit.
LANGUAGE: JAVA
CHALLENGE:
Assume that x is a char variable has been declared and already given a value. Write an expression whose value is true if and only if x is alphanumeric, that is either a letter or a decimal digit.
SOLUTION:
(x>='A' && x<='Z') || (x>='a' && x<='z') || (x>='0' && x<='9')