str25.java

来自「学习java编程的好程序」· Java 代码 · 共 13 行

///输出字符串的容量capacity
///输出字符串的长度length
public class str25
{
    public static void main(String[] args)
    {
        StringBuffer sb=new StringBuffer(40);
        System.out.println(sb.capacity());
        sb.ensureCapacity(100);
        System.out.println(sb.capacity());
    }
}