PURPOSE: To provide the icon selecting method, which reduces the burden of an operator and realizes comfortable operating environments, by predicting the moving destination of a mouse cursor and performing an operation equal to the selection of any specified icon before the arrival of the mouse cursor.

CONSTITUTION: A current position Q of a mouse cursor 2 is recorded. Next, the movement of the mouse cursor 2 is sampled at fixed time intervals, and a vector from a current position P of the mouse cursor 2 to each icon 1 is calculated. Afterwards, angle change amounts θ1, θ2 and θ3 with vectors from the position Q of the mouse cursor 2 sampled last time to respective icons 1 and 3 are calculated. Then, the specified icon 3 having the smallest angle change amount is calculated. When a distance D between the specified icon 3 and the mouse cursor 2 is shorter than a fixed distance, the icon 3 is stored in a sub selecting state, inverted display or the like is performed, and it is informed of the operator. Next, when the icon selecting button of a mouse is depressed and there is the icon in the sub selecting state, any processing is performed corresponding to this condition.