Answers for "how to make abutton transparent"

css button transparent

button {
    background-color: Transparent;
    background-repeat:no-repeat;
    border: none;
    cursor:pointer;
    overflow: hidden;
    outline:none;
}

jbutton set background transparent

button.setOpaque(false);
button.setContentAreaFilled(false);
button.setBorderPainted(false);