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Mariana Nuta
5,321 Pointscheck if uppercase
check if uppercase
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
if(fieldName.charAt(0) != 'm' && !fieldName.charAt(1) ){
throw new IllegalArgumentException("Fieldname must start with 'm' and must be uppercased!");
}
return fieldName;
}
}
1 Answer
Kourosh Raeen
23,733 PointsYou can use the isUpperCase() method from the Character class:
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
if (fieldName.charAt(0) != 'm' || !Character.isUpperCase(fieldName.charAt(1))) {
throw new IllegalArgumentException("Fieldname must start with 'm' and the second letter must be uppercased!");
}
return fieldName;
}
}