6. Which of the following is not a wrapper class

A. String 

B. Integer 

C. Boolean 

D. character 

7. How do you change the current layout manager for container?

A. use setLayout() 

B. once created you cannot change it 

C. You set setLayoutManager() 

D. use updateLayout() 

8. In order to cause the paint(Graphics) method to execute, which of the following is the most appropriate method to call

A. paint() 

B. repaint() 

C. paint(Graphics) 

D. update(Graphics) 

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