filereader.java

快速傅立叶变换算法的实现

package ex4_fast_fourier_transform;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

public class Filereader {
	int n=0;
	String[] as;
	public Filereader(String e) throws IOException{

		BufferedReader br = new BufferedReader(new FileReader(e));

		String s;
		StringBuffer sb = new StringBuffer();
		while ((s = br.readLine()) != null) {
			sb.append(s + "   ");
		}
		s = sb.toString().trim();

		as = s.split("\\s+");
		n = Integer.parseInt(as[0]);
	}
	public int length(){
		return as.length;
	}
	public String[] getlist(){
		return as;
	}
	public int getn(){
		return n;
	}
}