public class Class1 {
    public ArrayList<MyBean> beans = new ArrayList<MyBean>();
    public void method1(){
        for (int i = 0; i < 5; i++) {
            beans.add(new MyBean("текст1 " + i, "текст2 " + i, "текст3 " + i, "текст4 " + i));
        }
    }
}
//=========================================================


public class Class2 implements ActionListener{
//-----
    Class1 parent;
    Run (Class1 parent){
        this.parent = parent;
    }
//-----
    public void actionPerformed(ActionEvent e){
       parent.beans.add(new MyBean("текст1 ", "текст2 ", "текст3 ", "текст4 "));
    }