CODEWITHSUNDEEP
java
nekki
nekki

Reputation: 19

Scanner for the Character Data type

Is there any method to give input to the Character data type without using String. for eg : if I have to initialize the character array then usually we do in this format :

c[i]=string.next().charAt(i);

I don't want to use the next() method.

Could you tell me any other methods?

//System.out.println("Enter the String");
        c[i]=s1.next().charAt(i);

            int n;
    Scanner s1=new Scanner(System.in);
    System.out.println("Enter the number of string arrays");
            n=s1.nextInt();
            char[] c=new char[n];
    for(int i=0;i<n;i++)
    {
        //System.out.println("Enter the String");
        c[i]=s1.next().charAt(i); // I dont want to use this .
    }
    for(int i=0;i<n;i++)
    {
        System.out.print(c[i]);
    }

Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: 1 at java.lang.String.charAt(Unknown Source) at CountingValleys.main(CountingValleys.java:16)

Upvotes: 1

Views: 355

Answers (1)

Ashutosh
Ashutosh

Reputation: 1107

To accept character as input in java, we do not have any specific input stream like for Integer {nextInt()}. So the choice we are left with is to make use of next() with a bit twist in it like below-

Scanner sc = new Scanner(System.in);     
char inputCharacter = sc.next().charAt(0);

In your case if you want to read multiple characters you can read them at index 0 and keep appending them to you character array.

Below is the code snippet- 

public static void main(String args[]) {
    Scanner sc = new Scanner(System.in);
    char arr[] = new char[n];
    for(int i=0;i<n;i++) {
        arr[i] = sc.next().charAt(0);
    }
    for(int i = 0; i< n; i++){
        System.out.println(arr[i]);
    }
}

Upvotes: 1

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