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ArrayAndArrayListPractice.java

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package basic;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.Comparator;

import java.util.List;

public class ArrayAndArrayListPractice {

private String[] array;

private ArrayList<String> arrayList;

public ArrayAndArrayListPractice() {

System.out.println("Initialize Array and ArrayList");

array = new String[] { "hello", "world" };

arrayList = new ArrayList<>(List.of("hello", "world"));

}

private void getSize() {

System.out.printf("Size of Array: %d\n", array.length);

System.out.printf("Size of ArrayList: %d\n", arrayList.size());

}

private void setItem(int index, String item) {

array[index] = item;

arrayList.set(index, item);

}

private void getItem(int index) {

System.out.printf("Array: %s\n", array[index]);

System.out.printf("ArrayList: %s\n", arrayList.get(index));

}

private void sort() {

Arrays.sort(array);

arrayList.sort(Comparator.naturalOrder());

}

public static void main(String[] args) {

ArrayAndArrayListPractice practice = new ArrayAndArrayListPractice();

practice.getSize();

practice.setItem(0, "Hello");

practice.getItem(0);

practice.sort();

}

}