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Check whether the entered value is whitespace or not in Java
To check whether the entered value is whitespace or not in Java, use the Character.isWhitespace() method.
We have a value to be checked.
char val = ' ';
Now let us use the Character.isWhitespace() method.
if (Character.isWhitespace(val)) { System.out.println("Value is a Whitespace!"); } else { System.out.println("Value is not a Whitespace"); }
Let us see the complete example now to check whether the entered value is whitespace or not in Java.
Example
public class Demo { public static void main(String []args) { char val =' '; System.out.println("Value: "+val); if (Character.isWhitespace(val)) { System.out.println("Value is a Whitespace!"); } else { System.out.println("Value is not a Whitespace"); } } }
Output
Value: Value is a Whitespace!
Let us see another example.
Example
public class Demo { public static void main(String []args) { char val ='L'; System.out.println("Value: "+val); if (Character.isWhitespace(val)) { System.out.println("Value is a Whitespace!"); }else { System.out.println("Value is not a Whitespace"); } } }
Output
Value: L Value is not a Whitespace
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