Different Java Scanner for input of different types

Question

Imagine the following scanario: I have a program which ask for an integer input, followed by a String input.

int age=0;
String name;
Scanner sc = new Scanne         


        

Answer 1

You were not given a chance to enter the name because nextInt() doesn't read the new-line character '\n' (inputted by user after pressing Enter), whereas nextLine() does. So as soon as you call name = sc.nextLine();, it will just read the '\n' character that the nextInt() didn't read already.

Definitely do not create a new Scanner if the Scanner if you're scanning the same thing (like System.in) - only change Scanners if you are scanning something else, like different files or something.

To get your code working (with only one Scanner instance), use this:

int age = 0;
String name;
Scanner sc = new Scanner(System.in);

System.out.print("Enter Age: ");
age = sc.nextInt();
System.out.print("Enter Name: ");

sc.nextLine(); // "dispose" of the '\n' character
               // so that it is not recorded by the next line

name = sc.nextLine();

// print your findings
System.out.println("------\nAge: " + age + "\nName: " + name);

Example input/output:

Enter Age: 17
Enter Name: Michael
------
Age: 17
Name: Michael