Exceptions

Introduction

• können nicht von String to int casten
• → Übungsstunde

Exceptions werfen

throw new IllegalArgumentException ( "Favourite course must be one of {EProg, EProg}");

Beispiel

class Person { 
	String name; // INV: neither null nor "" 
	Person(String name) { 
		if (name == null) {
			throw new IllegalArgumentException("name must not be null"); 
		}
		if (name == "") {
			throw new IllegalArgumentException("name must not be empty"); 
		}
		this.name = name; 
	} 
}