Alinhar ícone e texto de um JButton

// Place text over center of icon; they both occupy the same space
button.setVerticalTextPosition(SwingConstants.CENTER);
button.setHorizontalTextPosition(SwingConstants.CENTER);

// Place text above icon
button.setVerticalTextPosition(SwingConstants.TOP);
button.setHorizontalTextPosition(SwingConstants.CENTER);

// Place text below icon
button.setVerticalTextPosition(SwingConstants.BOTTOM);
button.setHorizontalTextPosition(SwingConstants.CENTER);

// Place text to the left of icon, vertically centered
button.setVerticalTextPosition(SwingConstants.CENTER);
button.setHorizontalTextPosition(SwingConstants.LEFT);

// Place text to the left of icon and align their tops
button.setVerticalTextPosition(SwingConstants.TOP);
button.setHorizontalTextPosition(SwingConstants.LEFT);

// Place text to the left of icon and align their bottoms
button.setVerticalTextPosition(SwingConstants.BOTTOM);
button.setHorizontalTextPosition(SwingConstants.LEFT);

// Place text to the right of icon, vertically centered
button.setVerticalTextPosition(SwingConstants.CENTER);
button.setHorizontalTextPosition(SwingConstants.RIGHT);

// Place text to the right of icon and align their tops
button.setVerticalTextPosition(SwingConstants.TOP);
button.setHorizontalTextPosition(SwingConstants.RIGHT);

// Place text to the right of icon and align their bottoms
button.setVerticalTextPosition(SwingConstants.BOTTOM);
button.setHorizontalTextPosition(SwingConstants.RIGHT);

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