Arrays.copyOfRange() in Java with Examples

import java.util.Arrays;

public class Main {
  
    public static void main(String[] args) {
      
        // Original array
        int[] arr1 = {10, 20, 30, 40,};

        // Copy elements from index 1 to 3 (exclusive)
        int[] arr2 = Arrays.copyOfRange(arr1, 1, 3);

        System.out.println("Copied Array: " + Arrays.toString(arr2));
    }
}

// Java program to illustrate copyOfRange() method
import java.util.Arrays;

class GFG {

    public static void main(String args[]) {

        int arr1[] = { 1, 2, 3, 4, 5, 6, 7 };

        // Copying elements within range
        int[] arr2 = Arrays.copyOfRange(arr1, 2, 6);
        for (int i : arr2)
            System.out.print(i + "  ");

        System.out.println();

        // Copying with out-of-range index (fills with zeroes)
        int[] arr3 = Arrays.copyOfRange(arr1, 4, arr1.length + 3);
        for (int i : arr3)
            System.out.print(i + "  ");

        // Uncomment to see exceptions:
      
        // IllegalArgumentException
        // int[] arr4 = Arrays.copyOfRange(arr1, 5, 3);  
      
        // ArrayIndexOutOfBoundsException
        // int[] arr5 = Arrays.copyOfRange(arr1, 10, arr1.length + 5); 
    }
}

// Java program to illustrate copyOfRange() method
import java.util.Arrays;

class GFG {
    
    static class Employee {
        int i;
        String n;

        // constructor
    public Employee(int i, String n)
        {
            this.i = i;
            this.n = n;
        }

        // Override toString()
    public String toString()
        {
            return i + "   " + n;
        }
    }

    public static void main(String args[]) {
        
      Employee[] e = {   new Employee(10, "geek1"),
                         new Employee(20, "geek2"),
                         new Employee(30, "geek3"),
                         new Employee(40, "geek4"),
                         new Employee(50, "geek5") };

        // Copying range from index 3 to 5 in E array
        Employee[] c = Arrays.copyOfRange(e, 3, 5);
        for (Employee e1 : c)
            System.out.print(e1.toString() + "  ");

        System.out.println();

        // Copying Employee array to Object array
        Object[] o = Arrays.copyOfRange(e, 1, 3, Object[].class);

        // Uncommenting the following line would throw an error
        // Number[] n = Arrays.copyOfRange(e, 1, 3, Number[].class);

        for (Object e1 : o) {
            System.out.print(e1.toString() + "  ");
        }
    }
}