I'm a little bit confused.
I am writing a program in which I need an
array to save the values but the values are user defined and I want to print the array but it prints the
array value:
1 0 0 0 0 0
Because I define the length of the array. So what can I do to remove the extra 0 and print only user defined values?
There are two solutions
int arrLength and use that to try your array size
If you want a dynamically sized collection I would recommend using a List (like ArrayList).
This is a simple example of how it works:
List<Integer> list = new ArrayList<Integer>();
list.add(1);
list.add(2);
list.add(3);
System.out.println("My List:" + list);
Output:
My List:[1, 2, 3]
You have to import java.util.ArrayList and java.util.List to be able to use them.
You can also iterate over the List like this:
for(int val : list) {
System.out.println("value: " +val);
}
Output:
value: 1
value: 2
value: 3
or iterate with an index:
for(int i=0; i<list.size(); i++){
System.out.println("value " + i + ": " + list.get(i));
}
Output:
value 0: 1
value 1: 2
value 2: 3
(Note that the indexes are 0-based; i.e. they start at 0, not 1)
For further information, please read the two Javadocs linked above for List and ArrayList
You can use a dynamic array, which is implemented by java as ArrayList.
An alternative (worse one though, in most cases), is find out the "desired" length of the array, and get only a part of it by creating a new array with the Arrays.copyOfRange() method
It also seems you are using a custom printing method, which you can halt after reaching a certain index.
As a side note, you can print an array easily by converting the array to String with Arrays.toString(array) - and printing this String
The simple way is like:
List list = new ArrayList(5);
