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  1. Prepare
  2. Tutorials
  3. 30 Days of Code
  4. Day 21: Generics
  5. Discussions

Day 21: Generics

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365 Discussions

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  • nehuen_esquivel
     + 0 comments
    import java.io.*;
import java.util.*;

public class Solution {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        
        int arraySize;
        String firstElement;
        List<String> numbers = Arrays.asList("0", "1", "2", "3", "5", "6", "7", "8", "9");
        Integer[] integerArray;
        String[] stringArray;
        
        while(scanner.hasNext()) {
            arraySize = Integer.parseInt(scanner.nextLine());
            
            firstElement = scanner.nextLine();
            if (numbers.contains(firstElement)) {
                integerArray = new Integer[arraySize];
                integerArray[0] = Integer.parseInt(firstElement);
                
                for (int i = 1; i < arraySize; i++) {
                    integerArray[i] = Integer.parseInt(scanner.nextLine());
                }
                
                printArray(integerArray);
            } else {
                stringArray = new String[arraySize];
                stringArray[0] = firstElement;
                
                for (int i = 1; i < arraySize; i++) {
                    stringArray[i] = scanner.nextLine();
                }
                                
                printArray(stringArray);
            }
        }
        
        scanner.close();
    }
    
    private static <E> void printArray(E[] a) {
        for (E e: a) {
            System.out.println(e);            
        }
    }
}

  • sivaram_movva1
     + 0 comments

    c#

    static void PrintArray(T[] a) { foreach(var i in a) { Console.WriteLine(i); } }

  • dkishorkoirala
     + 0 comments

    **c++ 11 // Write your code here

    template void printArray(const vector& A) { for (const auto &element : A) { cout << element << endl; } }

  • akulbachandra67
     + 0 comments

    **Java 8 Generic Solution **

    public static <E> void printArray(E[] arr){
for(int i=0; i<arr.length; i++){
System.out.println(arr[i]);
}
}

  • gangaramyadav
     + 0 comments

    import java.util.*;

    public class Solution { public static void main(String[] args) { Scanner sc = new Scanner(System.in);

        while (sc.hasNextInt()) {
        int t = sc.nextInt();

        // Peek the next token to check if it is an int
        if (sc.hasNextInt()) {
            Integer[] arr = new Integer[t];
            for (int i = 0; i < t; i++) {
                if (sc.hasNextInt()) {
                    arr[i] = sc.nextInt();
                }
            }
            printArray(arr);
        } else {
            String[] arr = new String[t];
            for (int i = 0; i < t; i++) {
                if (sc.hasNext()) {
                    arr[i] = sc.next();
                }
            }
            printArray(arr);
        }
    }

    sc.close();
}

public static <T> void printArray(T[] array) {
    for (T item : array) {
        System.out.println(item);
    }
}

    }