array list java code example
Example 1: how to import an arraylist in java
import java.util.ArrayList;
Example 2: integer arraylist
ArrayList<Integer> contractValue = new ArrayList<Integer>();
Example 3: java create arraly list
List<String> words = new ArrayList<String>();
Example 4: what is arraylist
Size is dynamic
Only supports objects
not syncronized
array based class
Example 5: java arraylist
import java.util.List;
import java.util.ArrayList;
List l = new ArrayList();
ArrayList a = new ArrayList();
List<String> l = new ArrayList<String>();
ArrayList<Integer> a = new ArrayList<Integer>();
List<Double> l = new ArrayList<Double>(5);
Example 6: arraylist in java
import java.util.ArrayList;
public class ArrayListExample
{
public static void main(String[] args)
{
int num = 14;
ArrayList<Integer> al = new ArrayList<Integer>(num);
for(int a = 1; a <= num; a++)
{
al.add(a);
}
System.out.println(al);
al.remove(7);
System.out.println(al);
for(int a = 0; a < al.size(); a++)
{
System.out.print(al.get(a) + " ");
}
}
}