java StringBuffer

[java]代码库

/**
 * StringBuffer的使用
 */
class StringBufferDemo {
	public static void main(String args[]) {
		StringBuffer sb = new StringBuffer("Hello");
		System.out.println("buffer = " + sb);
		System.out.println("length = " + sb.length());
		System.out.println("capacity = " + sb.capacity());
	}
}