Increment pointer

Question

What is the right syntax in java to increament an array reference like in C?

(edited): what I mean by increament is for example when you have an array of n element and arr[0]=f
arr[1]=l , arr[2]=k...
When we increament by one it bacome arr[0]=l, arr[1]=k... and so on
I want to know if there is a syntax to do this or i should create a method by my own?

https://code.sololearn.com/cvgGZ1boeRmz/?ref=app

Answer 1

As far as I know Java doesn’t have pointers like some other languages do e.g., C. Thus, you won’t have direct access to memory or perform any pointer arithmetic operations. This is one of the reasons Java is managed and considered safer yet slow language.

Answer 2

import java.util.Arrays;

public class Program
{
public static void main(String[] args) {
int[] arr = {0, 1,2 ,3,4,5};
System.out.println (Arrays.toString(arr));
for (int i = 0; i < arr.length; i++) arr[i]++;
System.out.println(Arrays.toString(arr));
}
}

// Keep learning & happy coding :D

https://code.sololearn.com/cecN9JbBw9Nb

Answer 3

for (int i = 0; i < arr.length; i++)
{
arr[i]++;
}

Answer 4

You can use Arrays.copyOfRange() method to shift the array indices, by creating a new array.
The new array can also be the same size as the original, in this case, at least for int[] the remaining elements at the end are filled with 0.

https://code.sololearn.com/c8bsVLDYVZLv/?ref=app

https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Arrays.html#copyOfRange(int%5B%5D,int,int)