How to create dynamically a swing list with n row where for each row I put 2 data

Question

I have less experience with Java Swing and I want to create a dynamic list where for each element must be specified 2 parameters.

I have n elements, where the number n i

Answer 1

By Using ArrayList You can :

import java.util.ArrayList;

public class ArrayList2d
{
ArrayList>  array;

public ArrayList2d()
{
    array = new ArrayList>();
}

public void ensureCapacity(int num)
{
    array.ensureCapacity(num);
}


public void ensureCapacity(int row, int num)
{
    ensureCapacity(row);
    while (row < getNumRows())
    {
        array.add(new ArrayList());
    }
    array.get(row).ensureCapacity(num);
}


public void Add(Type data, int row)
{
    ensureCapacity(row);
    while(row >= getNumRows())
    {
        array.add(new ArrayList());
    }
    array.get(row).add(data);
}

public Type get(int row, int col)
{
    return array.get(row).get(col);
}

public void set(int row, int col, Type data)
{
    array.get(row).set(col,data);
}

public void remove(int row, int col)
{
    array.get(row).remove(col);
}

public boolean contains(Type data)
{
    for (int i = 0; i < array.size(); i++)
    {
        if (array.get(i).contains(data))
        {
            return true;
        }
    }
    return false;
}

public int getNumRows()
{
    return array.size();
}

public int getNumCols(int row)
{
    return array.get(row).size();
}
}