testfilewriter.java

流 的目的在于屏蔽IO操作的复杂性

import java.io.FileWriter;

public class TestFileWriter
{
	public static void main(String[] args) throws Exception
	{
		FileWriter fw = new FileWriter("test.txt");
		
		for(int i=1;i<255;i++)
		{
			fw.write(i);
		}
		
		fw.close();
	}
}