試題詳解

 public class NamedCounter{

 private final String name； 

private int count； 

public NamedCounter(String name){this.name = name；} 

public String getName(){return name；} 

public void increment(){count++；} 

public int getCount(){return count；}

 public void reset(){count = 0；}

 Which three changes should be made to adapt this class to be used safely by multiple threads? (Choose three.)
(A) declare reset() using the synchronized keyword
(B) declare getName() using the synchronized keyword
(C) declare getCount() using the synchronized keyword
(D) declare the constructor using the synchronized keyword
(E) declare increment() using the synchronized keyword