How do I include an "iostream" parallel?

**keysle** · May 29th, 2012, 01:09 AM

Made some last minute "business" decisions. I am no longer going to try programming in Java. It's a dead end for my ambitions. ... so many changes us youth go through -_-'

This is my basic C++ program. I'm trying to clone it in java.

#include <iostream>
using namespace std;
 
int main ()
{
	int i;
	cout << "Your story begins NOW!!!";
	cout << endl;
	cout << "Please enter your age: ";
	cin >> i;
	cout << endl;
	cout << "The value you entered is: " << i;
	cout << endl;
	system("PAUSE");
	return 0;
}

For java so far all I have is

import java.io.*;
import java.util.*;
 
public class initiate {
		public static void main(String[] args) {
			System.out.println("Your story begins NOW!!!\n");
			System.out.println("Enter your age: \n");
			Scanner scan = Scanner(System.in);
		}
}

What am I missing? I receive this error

Exception in thread "main" java.lang.Error: Unresolved compilation problem: 
	The method Scanner(InputStream) is undefined for the type initiate
 
	at initiate.main(initiate.java:9)

**Norm** · May 29th, 2012, 07:29 AM

You have coded a method call, not a call to a constructor. Add new.

**javapenguin** · May 30th, 2012, 10:43 PM

int i;
cout << "Your story begins NOW!!!";
cout << endl;
cout << "Please enter your age: ";
cin >> i;
cout << endl;
cout << "The value you entered is: " << i;
cout << endl;
system("PAUSE");
return 0;
}

Replace cout << text with System.out.println(text)

Replace cin >> with

scan.nextInt() for integer
scan.nextDouble() for double
scan.nextLine() (for a whole line) or scan.next() (for the next String that comes before you reach a space.) for String
scan.nextLine() (or scan.next()) anyway scan.nextLine().charAt(0) for a char readin. (There is no nextChar() or nextCharacter() method.)

**Parranoia** · May 31st, 2012, 12:02 AM

Corrected your issue:

Scanner scan = new Scanner(System.in);

When instantiating an object in java you have to invoke it using the keyword "new"

**javapenguin** · May 31st, 2012, 12:26 AM

That's what Norm already said.

Originally Posted by Norm

You have coded a method call, not a call to a constructor. Add new.

As for

system("Pause"), that's a system constructor or a method called system. I can surmise that much. Whether a constructor or a method, it's being passing the cstring "Pause".
If it's a sort of wait, like you want to wait for a second or so, then try

Thread.sleep(long millis);

Anyway, I found this about system("Pause")

System("PAUSE"); why is it wrong to use? - C++ Forum

**keysle** · June 11th, 2012, 08:33 AM

Sorry for the late response.
blasts. I thought I managed to get this.

Java penguin. Isn't system() only used for debugging anyway? I d on't see why the console would be used in a public product.

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