6.5strlen.java

JAVA程序设计的源代码

public class StrLen
{
public static void main(String []args)
{
StringBuffer s1=new StringBuffer("Hello,Java!");
System.out.println("The length is "+s1.length());    //打印字符串长度
System.out.println("The allocated length is "+s1.capacity());
s1.setLength(100);    //重新设置字符串长度
System.out.println("The new length is "+s1.length());    //打印字符串长度
}
}