【单选题】请阅读下面程序 public class ExampleStringBuffer{ public static void main(String []args){ StringBuffer sb=new StringBuffer('test') System.out.println('buffer='+sB) System.out.println('length='+sb.length())} ...
【单选题】请阅读下面程序 public class ExampleStringBuffer{ public static void main(String[]args){ StringBuffer sb=new StringBuffer('test'); System.OUt.println('buffer='+sb); System.OUt.println('length='+sb.length );}}...
【单选题】阅读下面程序 public class Test implements Runnable{ public static void main(String[]args){ _______________________________________ t. start() } public void mR(){ System. out. println('Hello!') }} 在程序下画线...