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Java Java Objects (Retired) Delivering the MVP Validation

Why isn't the System.console.printf working?

Everything else looks right, but it's throwing this symbol not found. Any idea why?

TeacherAssistant.java
public class TeacherAssistant {

  public static String validatedFieldName(String fieldName) {
    // These things should be verified:
    try {
           if (fieldName.charAt(0) == 'm' || Character.isUpperCase(fieldName.charAt(1)) == true){
            return fieldName;
           }
    } catch (IllegalArgumentException iae) {
      System.console.printf("Wrong");
    }
    // 1.  Member fields must start with an 'm'
    // 2.  The second letter in the field name must be uppercased to ensure camel-casing
    // NOTE:  To check if something is not equal use the != symbol. eg: 3 != 4

  }

}

3 Answers

System has a static method named console which returns the console object associated with the current JVM

The right way to call this would be System.console().print()

Try: System.console().printf("Wrong");

I might also suggest doing a println instead of a printf. I would only use printf if you're planning on using placeholders or formatting your code in a specific way. println simply prints a line of text.

Try: System.out.println("Wrong");

or as kirankalathil said try System.console().print()