咨询个别人的问题中的问题
public class question5 {
public question5() {
}
public static void main(String[] args) {
StringBuffer sbA = new StringBuffer("A");
StringBuffer sbB = new StringBuffer("B");
operate(sbA,sbB);
System.out.println(sbA +","+ sbB);
}
private static void operate(StringBuffer a_sbA,StringBuffer a_sbB) {
// a_sbA.append(a_sbB);
a_sbA = a_sbB;
// System.out.println(a_sbA);
a_sbB = a_sbA;
// System.out.println(a_sbB);
}
}
问题一,如果想让 System.out.println(sbA +","+ sbB);这里的sbA和abB是operate();中的呢?