AP® Computer Science A glossary
Double (class)
Also called: Double
Course: AP® Computer Science A Shows up in: Unit 4: Data Collections
The java.lang wrapper class whose immutable objects hold one double value; Double.parseDouble(s) returns a String as a double.
Appears in the course and exam description (CED): 4.7.A.14.7.A.24.7.A.34.7.A.5
Not to be confused with the primitive type double. A Double is an object; a double is a plain value.
Double price = Double.parseDouble("4.5");
double total = price * 2;
System.out.println(total);Output:
9.0