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Java Program to check whether the entered character is ASCII 7 bit numeric and character
To check whether the entered value is ASCII 7-bit numeric and character (alphanumeric), check the characters ASCII value for −
A to Z Or a to z Or 0 to 9
Here, we have the following value −
char one = '5';
Now, we have checked some conditions with if-else for ASCII 7-bit numeric and character.
if ((one >= 'A' && one <= 'Z') || (one >= 'a' && one <= 'z') || (one >= '0' && one <= '9')) {
System.out.println("Given value is numeric and character (alphanumeric)!");
} else {
System.out.println("Given value is not numeric and character!");
}Example
public class Demo {
public static void main(String []args) {
char one = '5';
if ((one >= 'A' && one <= 'Z') || (one >= 'a' && one <= 'z') || (one >= '0' && one <= '9')) {
System.out.println("Given value is numeric and character (alphanumeric)!");
} else {
System.out.println("Given value is not numeric and character!");
}
}
}Output
Given value is numeric and character (alphanumeric)!
Let us see another example −
Example
public class Demo {
public static void main(String []args) {
char one = 'V';
if ((one >= 'A' && one <= 'Z') || (one >= 'a' && one <= 'z') || (one >= '0' && one <= '9')) {
System.out.println("Given value is numeric and character (alphanumeric)!");
} else {
System.out.println("Given value is not numeric and character!");
}
}
}Output
Given value is numeric and character (alphanumeric)!
Updated on: 25-Jun-2020
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