java how to change the length of an array
The size of an array cannot be changed after instantiation
If you need to change the size, create a new array and copy the contents
or use an ArrayList which does require a set sizejava how to change the length of an array
The size of an array cannot be changed after instantiation
If you need to change the size, create a new array and copy the contents
or use an ArrayList which does require a set sizehow to replace an element in array in java
class array{
public static void main(String[] args){
int arr[] = {1,2,3,4};
System.out.println("Before update" + arr[2]);
arr[2] = 9;//updating the value
System.out.println("After update" + arr[2]);
}
}
/*output:-
Before update3
After update9*/Copyright © 2021 Codeinu
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