swing设置一个有颜色的JLabel

1、swing设置一个有颜色的JLabel

2、代码

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public class ColorLabel {     public static void main(String[] args) {         JFrame jFrame = new JFrame();         jFrame.setTitle("");         jFrame.setSize(600, 300);         Container cPane = jFrame.getContentPane();         JLabel blueLabel = new JLabel("A");         blueLabel.setOpaque(true);         //blueLabel.setPreferredSize(new Dimension(60, 20));         blueLabel.setBackground(new Color(193,210,240));         JLabel greenLabel = new JLabel("B");         greenLabel.setBackground(Color.GREEN);         greenLabel.setOpaque(true);         //greenLabel.setPreferredSize(new Dimension(60, 20));         JLabel brownLabel = new JLabel("C");         brownLabel.setBackground(new Color(255,192,0));         brownLabel.setOpaque(true);         //brownLabel.setPreferredSize(new Dimension(60, 40));         JPanel labelPanel = new JPanel();         FlowLayout flowLayout = new FlowLayout(FlowLayout.LEFT);         labelPanel.setLayout(flowLayout);         labelPanel.add(blueLabel);         labelPanel.add(greenLabel);         labelPanel.add(brownLabel);         cPane.add(labelPanel);         jFrame.setVisible(true);     } }

3、效果

 

注意：JLabel只有设置setOpaque为true，颜色效果才会生效