How to make two inputs work under same loop?

Question

I am trying to solve a basic problem of finding people with over 5 years of experience. But the code is not running that way.

This is for running two user input command in the same for loop:

Scanner s = new Scanner(System.in);
int n = s.nextInt();

for (int i = 0; i <= n; i++) {
    String name = s.nextLine();
    System.out.println("enter experience");
    int e = s.nextInt();

    if (e > 5) {

    } else {

    }
}

The expected result is the number of people with over 5 years of experience but the actual is the code is asking for experience input only.

For start, check your loop - ```for(int i=0;i<=n;i++)```, Is this what you want? If user type 2 than loop will run 3 times — Aviza, Jul 27 '19 at 15:28

score 1 · Answer 1 · answered Jul 27 '19 at 16:58

When you use nextInt() , you immediately press enter right ? What is actually happening is that nextInt() takes your integer input , you press enter , now this new line is consumed by String name = s.nextLine(); and the code immediately goes to your System.out.println("enter experience");

What you should be doing is to just simply add another s.nextLine() in the loop like

Scanner s = new Scanner(System.in);
                int n = s.nextInt();
                String name = s.nextLine();

                for (int i = 0; i <= n; i++) {
                        s.nextLine(); // put this here 
                        System.out.println("enter name");

In this way your new line key is consumed by this new statement and you can now enter your name .

@Hansraj have you solved your problem ? If yes then mark it as the answer and upvote — bilal asif mirza, Jul 28 '19 at 07:24

score 0 · Answer 2 · answered Jul 27 '19 at 15:40

0

Try this code:

Scanner s = new Scanner(System.in);
int n = Integer.parseInt(s.nextLine());

for (int i = 0; i <= n; i++) {
    String name = s.nextLine();
    System.out.println("enter experience");
    int e = Integer.parseInt(s.nextLine());

    if (e > 5) {

    } else {

    }
}

answered Jul 27 '19 at 15:40

SamratV

224
2
12

I tried it but this didnt wor'k either – Hansraj Jul 27 '19 at 16:22

score 0 · Answer 3 · edited Jul 27 '19 at 17:13

0

You need to clean the buffer somehow. This maybe helps you.

The following will solve it:

Scanner s = new Scanner(System.in);

int n = s.nextInt(); // the input       
s.next();            // clean the buffe

edited Jul 27 '19 at 17:13

RobC

22,977
20
73
80

answered Jul 27 '19 at 15:51

AName

88
5

score 0 · Answer 4 · answered Jul 27 '19 at 16:41

0

What you want to do I think is to compare the years of experience after the users are registered. If that is the case then you need to store the users and their stats somewhere like in a HashMap and then filter that HashMap.

answered Jul 27 '19 at 16:41

George Makroglou

439
2
9

How to make two inputs work under same loop?

4 Answers4