How to print list of string inside bracket? [closed]

Answer 1

public class House {
    List colors = new ArrayList(); 
    public void addPaint(String color)
    {
        colors.add(color);        
    }
    public void display()
    {   String value = "";
        for (String color : colors)
        value += color + ", ";
        value = value.substring(0, value.length()-2);
        System.out.println("{ " + value + " }");
    }
}

public static void main(String[] args) {
    House house1 = new House();
    house1.addPaint("Red");
    house1.addPaint("Blue");
    house1.addPaint("Yellow");
    house1.display();
}

// Output: { Red, Blue, Yellow }