Arrays.fill और copyOf

import java.util.Arrays;

public class Main {
    public static void main(String[] args) {
        int[] nums = new int[5];
        Arrays.fill(nums, 7);
        System.out.println(Arrays.toString(nums));
    }
}

import java.util.Arrays;

public class Main {
    public static void main(String[] args) {
        int[] nums = new int[6];
        Arrays.fill(nums, 2, 5, 9);
        System.out.println(Arrays.toString(nums));
    }
}

import java.util.Arrays;

public class Main {
    public static void main(String[] args) {
        String[] grid = new String[4];
        Arrays.fill(grid, "empty");
        System.out.println(Arrays.toString(grid));
    }
}

import java.util.Arrays;

public class Main {
    public static void main(String[] args) {
        int[] nums = {1, 2, 3};
        int[] bigger = Arrays.copyOf(nums, 5);
        System.out.println(Arrays.toString(bigger));
    }
}

import java.util.Arrays;

public class Main {
    public static void main(String[] args) {
        int[] nums = {1, 2, 3, 4, 5};
        int[] smaller = Arrays.copyOf(nums, 3);
        System.out.println(Arrays.toString(smaller));
    }
}

import java.util.Arrays;

public class Main {
    public static void main(String[] args) {
        int[] nums = {10, 20, 30, 40, 50};
        int[] middle = Arrays.copyOfRange(nums, 1, 4);
        System.out.println(Arrays.toString(middle));
    }
}

import java.util.Arrays;

public class Main {
    public static void main(String[] args) {
        int[] original = {1, 2, 3};
        int[] copy = Arrays.copyOf(original, 3);
        copy[0] = 99;
        System.out.println("Original: " + Arrays.toString(original));
        System.out.println("Copy:     " + Arrays.toString(copy));
    }
}

import java.util.Arrays;

public class Main {
    public static void main(String[] args) {
        int[] data = {1, 2, 3, 4};
        data = Arrays.copyOf(data, data.length * 2);
        data[4] = 5;
        System.out.println(Arrays.toString(data));
    }
}