下面的程序段运行结果为_______。public class ExampleStringBuffer { public static void main(String args[]){ StringBuffer sb=new StringBuffer(＂test＂); System.out.println(＂length=＂
时间:2019-07-13 12:29来源:未知 作者:admin 点击:
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7. 下面的程序段运行结果为_______。public class ExampleStringBuffer { public static void main(String args[]){ StringBuffer sb=new StringBuffer("test"); System.out.println("length="+sb.length()); System.out.println("charAt="+sb.charAt(3));
7. 下面的 程序段运行 结果为_______。public class Ex ampleStringBuffer { public static void main(String args[]){ StringBuffer sb=new StringBuffer("test"); System.out.println("length="+sb.length()); System.out.println("charAt="+sb.charAt(3)); A. length=20 charAt=t
B. length=20 charAt=s
C. length=4 charAt=s
D. length=4 charAt=t
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