How to display correct array in java

Question

I've created a Java program, and I want to display statistics. When the user input 1, it is single. And when a user input 2, it is a couple. When a user input 3, it is a family of 3.

Heres the example:

Scanner sc = new Scanner(System.in);

System.out.print("Enter group #1: ");
int g1 = sc.nextInt();
sc.nextLine();

System.out.print("Enter group #2: ");
int g2 = sc.nextInt();
sc.nextLine();

System.out.print("Enter group #3: ");
int g3 = sc.nextInt();
sc.nextLine();

System.out.print("Enter group #4: ");
int g4 = sc.nextInt();
sc.nextLine();

int[] numbers = {g1,g2,g3,g4};
int[] count = new int[] { 0, 0, 0};

String[] category = new String[]{"Single", "Couple","Family of 3"};
//String[][] category = new String[][] {{"Single"}, {"Couple"}, {"Family of 3"}};
String a = Arrays.toString(category).replaceAll("[\\[\\]]", "");
for (int i = 0; i < numbers.length; i++) {
    count[numbers[i] - 1]++;
}

System.out.println("");
System.out.println("Statistic: ");

for (int i=2; i <count.length; i++)
{
    System.out.println(a + " : " + count[i]);
}

But the display is so weird. Can help?

Results:

run:
Enter group #1: 1
Enter group #2: 1
Enter group #3: 1
Enter group #4: 1

Statistic: 
Single, Couple, Family of 3 : 4
Single, Couple, Family of 3 : 0
Single, Couple, Family of 3 : 0
BUILD SUCCESSFUL (total time: 4 seconds)

Correct results should be:

run:
Enter group #1: 1
Enter group #2: 1
Enter group #3: 1
Enter group #4: 1

Statistic: 
Single : 4
Couple: 0
Family of 3 : 0

You are not storing count properly.....

YakuZa
– YakuZa

2016-07-21 05:38:31 +00:00
Commented Jul 21, 2016 at 5:38 — YakuZa
– YakuZa, Commented Jul 21, 2016 at 5:38

Mursaleen Ahmad · Accepted Answer · 2016-07-21 04:35:23Z

3

Instead of

for (int i=2; i <count.length; i++)
{
    System.out.println(a + " : " + count[i]);
}

should be

for (int i=0; i <count.length; i++)
{
    System.out.println(category[i] + " : " + count[i]);
}

and get rid of variable a.

edited Jul 21, 2016 at 4:35

answered Jul 21, 2016 at 4:29

Mursaleen Ahmad

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1 Comment

Mursaleen Ahmad Over a year ago

@Hakim Lewis - Could you accept this answer since it worked for you. Thanks.

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