testwriter.java

不错..................是java的源码

import java.io.*;
public class TestWriter {
	public static void main(String args[]) {
		PrintWriter pw=new PrintWriter(System.out,true);
		long x=100;
		double y=136.56;
		pw.println("字符流输出:");
		pw.println(x+" * "+y+" = "+x*y);
	}
}