Thread: Java help with String Input and Output and casting

Hi everyone,

I'm pretty new to programming and my teacher assigned me this very confusing lab. I have to create a program that uses the Scanner in String input and Output that will enable the user to convert
double -> int
int -> byte
int -> short
int -> hex-string

The output should look something like this:
Syntax: convert <value> <type>
convert 15.5 int ~> 16
convert 128 byte ~> -128
<type>: int, byte, short, hex, decimal
Syntax: max <type>
max byte ~> 127
<type>: int, byte, short

Command ~> convert 15.5 int
Result: 16
Command ~> convert 128 byte
Result: -128
Command ~> max short
Result: 32767
Command ~> convert 158342834 hex
Result: 9701eb2

I would be eternally grateful if someone could help me with this program. Thank you.

Its much more complex than a 3 line code, ill show you what i've got so far, i dont even know if its all right.

import java.util.Scanner;

public class lab5 {

public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.println("What value and type would you like to convert to?");
String input = scanner.nextInt();

if (command.equals("convert")) {
String command = ?;
String value = ?;
String target = ?

if (target.equals("int")) {
int number = Integer.parseInt( input );

} else if (target.equals("byte")) {
byte number = Byte.parseByte( input );

} else if (target.equals("short")) {
short number = Short.parseShort( input )

} else if (target.equals("hex")) {
System.out.println("Result:" + Integer.toHexString());

System.out.println("Max:" + Integer.MAX_VALUE);

} else { System.out.println("I don't know how to do that.");
}
}

That doesnt help me and i dont know how to do that. My only question is can you do it for me or tell me what I need to fix in order to get my result?

No i understood that i give u the code and u fix it, or do it for me. Please this lab is due tomorrow for me and if i dont turn it in ill get an F.