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Start your free trialandrew nelson
3,416 PointsNot sure how to check if the second character in a string is an upper case? (Java)
Im getting a parameter "fieldName" and I have to check if the second letter is uppercase. What I tried was : fieldName.charAt(1).isUpperCase(); Also tried: fieldName.isUpperCase(fieldName.charAt(1)); and alsoooo: secondLetter = fieldName.charAt(1); secondLetter.isUpperCase();
public class TeacherAssistant {
public static String validatedFieldName(String fieldName) {
// These things should be verified:
// 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
String testFieldName = fieldName.toUpperCase(fieldName.charAt(1));
try{
if(fieldName.charAt(0) == 'm' || fieldName.charAt(1) == testFieldName)
return fieldName;
} catch(IllegalArgumentException ex){
System.out.print("Wrong");
}
}
}
1 Answer
Rebecca Rich
Courses Plus Student 8,592 PointsTry this:
Character.isUpperCase(fieldName.charAt(1))
isUpperCase is a static method in the Character class, so to access it, you have to call Character.isUpperCase(...)