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Java Program to double the size of an array

public class Demo {
	public static void main (String args[]) {
		int arr[] = {5, 10, 15, 20, 25, 30, 35, 40, 45, 50};
		System.out.println("Length of initial array = " + arr.length);
		int len = arr.length;
		int newArray[] = new int[len*2];
		System.arraycopy(arr, 0, newArray, 0, len);
		System.out.println("Length of new array = "+newArray.length);
	}
}

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