AddShapeCommand.java

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package com.example.graphics.command;
 
import com.example.graphics.model.Shape;
import java.util.List;

public class AddShapeCommand implements Command {
    private final List<Shape> shapes;
    private final Shape shape;
    
    public AddShapeCommand(List<Shape> shapes, Shape shape) {
        this.shapes = shapes;
        this.shape = shape;
    }
    
    @Override
    public void execute() {
        shapes.add(shape);
    }
    
    @Override
    public void undo() {
        shapes.remove(shape);
    }
}