Java代码可以在cmd窗口中编译，但不能在eclipse中运行

Question

this is the code from TIJ4#

The java code can compile and run in cmd window , but can not compile and run in eclipse .

//: io/MemoryInput.java
import java.io.*;   

public class MemoryInput {
public static void main(String[] args)
throws IOException {
StringReader in = new StringReader(
    BufferedInputFile.read("MemoryInput.java"));
int c;
while((c = in.read()) != -1){
  System.out.print((char)c);
  }
}

the wrong information about the code in eclipse is :
BufferedInputFile cannot be resolved

Answer 1

BufferedInputFile is not part of the package java.io . If you have that class in a library or in a certain folder you have to include it in Eclipse.

Answer 2

BufferedInputFile is not part of any default lib of java. So you have to add that class to your class path.