AP® Computer Science A glossary
Integer (class)
Also called: Integer
Course: AP® Computer Science A Shows up in: Unit 4: Data Collections
The java.lang wrapper class whose immutable objects hold one int value; Integer.parseInt(s) returns a String as an int.
Appears in the course and exam description (CED): 4.7.A.14.7.A.24.7.A.34.7.A.4
Use Integer as the type parameter for a list of whole numbers. An Integer variable can be null, and unboxing null throws a NullPointerException.
Integer count = Integer.parseInt("41");
count++;
System.out.println(count);Output:
42