dynamic array in java
import java.util.ArrayList;
public class Main {
public static void main(String[] args) {
ArrayList<Integer> arr=new ArrayList<Integer>(10);
for(int i =0;i<12;i++){
arr.add(i);
System.out.println("VAlUE" + arr.get(i));
System.out.println("SIZE" + arr.size());
}
}
}
// Dynamic nature means even if we initialize the array with
// a lesser size but at run time we need a greater size.
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import java.util.Arrays;
public class DynamicArray{
private int array[];
// holds the current size of array
private int size;
// holds the total capacity of array
private int capacity;
// default constructor to initialize the array and values
public DynamicArray(){
array = new int[2];
size=0;
capacity=2;
}
// to add an element at the end
public void addElement(int element){
// double the capacity if all the allocated space is utilized
if (size == capacity){
ensureCapacity(2);
}
array[size] = element;
size++;
}
Thank you!
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3.5
4
ArrayList<String> mylist = new ArrayList<String>();
mylist.add(mystring); //this adds an element to the list.
Thank you!
4
0
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