money label

MoneyLabels.java

This is just some suggestions for MoneyLabels.java. You don't have to follow me as long as your program works.
MonyLabels extends JPanel.

public void setLevel(int level): highlight the label corresponding to the level.
public String getMoney(int level): get the money corresponding to the level
public String getMoneyAfterWrongAnswer(int level): get the money after you fail to answer the question

Here is a picture shows you how to divide the JPanel and set the text alignment of the JLabelss.

You can choose different color you like but

you should choose different font color for labels corresponding to milestone level and the ordinary level.
You should choose different highlight font color for labels corresponding to milestone level and the ordinary level.
Color should be chosen so that the words on the label can be seen clearly
You can't use the default color of the JLabel.