将文件添加到我的类路径中

import java.io.*;
import java.util.Properties;

public class Input
{
    // This code is nasty and not exception safe. Just demo code!
    public static void main(String[] args) throws Exception
    {    
    InputStream  stream = Input.class.getResourceAsStream("SomeTextFile.txt");
     InputStreamReader is=new InputStreamReader(stream);
     BufferedReader br =new BufferedReader(is);
     String str=null;
     while ((str = br.readLine()) != null) {
    	   System.out.println(str);
    	  }
		
               
    }
}

这是我的班级，我的文件名是 SomeTextFile.txt位于C：\ MyProgram中，而Input.class文件位于D：\ myjava中，我想在commandprompt中运行这个程序，比如



D：\ myjava> javac Input.java - 然后它将编译



D：\ myjava> java输入 - 然后它会显示错误

我也给java -classpath C：\ MyProgram输入并运行也一样错误。

我是java的新手，请有人帮我提供我在commandprompt中提供的内容吗？

Hi,this is my class and my file name is "SomeTextFile.txt" which is located in C:\MyProgram,and the Input.class file is located in D:\myjava ,I want to run this program in commandprompt,like

D:\myjava>javac Input.java -then it will compile

D:\myjava>java Input -then it will showing error
also i give java -classpath C:\MyProgram Input and run also same error.
I am new in java ,please someone help me what i have to give in commandprompt?