013-002-008
Basic Numeric Wrapper Classes
Easy
Problem Description
Basic Numeric Wrapper Classes
In this problem, you will create a program that reads an integer value and a numeric string from standard input, converts the int value to a wrapper class using Integer.valueOf(), converts it back to a primitive with Integer.intValue(), and parses the string to a number using Integer.parseInt(), then displays the results to standard output.
Learning Objective: Understand how to use numeric wrapper classes like Integer and Double
Overview
Implement mutual conversion between primitive types and wrapper classes.
Input Format
integer value
numeric string
Specifications
- Convert the first line's integer to wrapper with Integer.valueOf()
- Convert back to primitive with Integer.intValue()
- Convert the second line's string to number with Integer.parseInt()
Output Format
Primitive: [integer value]
Wrapper: [integer value]
Parsed: [parsed number]
Example
Input:
42
100
Output:
Primitive: 42
Wrapper: 42
Parsed: 100
Ready to Try Running Code?
Log in to access the code editor and execute your solutions for this problem.
Don't have an account?
Sign Up