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2,745 Pointsvalidation
validation task
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
return fieldName;
}
}
Aldrich Alviar
2,745 PointsvalidatedFieldName method it will return the validated field name. if value passed in doesn't meet the requirements, throw an Illegal argument exception?
1 Answer
Simon Coates
28,694 Pointsthe following seems to pass.
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
char first = fieldName.charAt(0);
char second = fieldName.charAt(1);
if(first != 'm'){
throw new IllegalArgumentException( "field name should start with m.");
}
if(!Character.isUpperCase(second )){
throw new IllegalArgumentException( "second letter should be uppercase");
}
return fieldName;
}
}
Aldrich Alviar
2,745 Pointsthank you Sir I will continue to practice coding
Benjamin Barslev Nielsen
18,958 PointsBenjamin Barslev Nielsen
18,958 PointsWhat is your question? It is easier to help you, if you present your current attempt for the solution?