stringbuffertest.java

来自「这是清华大学编写的JAVA教材中所有题目的源代码！」· Java 代码 · 共 25 行

import java.io.*;
public class StringBufferTest
{
	public static void main(String args[])
	{
		StringBuffer s=new StringBuffer("hello");
		System.out.println("改变前：s="+s);
		s.reverse();
		System.out.println("改变后：s="+s);
		
		StringBuffer t=new StringBuffer(32);
		t.append("hello");

		System.out.println("length="+t.length());
		System.out.println("capacity="+t.capacity());

		t.insert(2,"AAA");
		String st=t.toString();
		System.out.println("st="+st);

		t.delete(0,2);
		st=t.toString();
		System.out.println("st="+st);
	}
}