JAVA读取txt文件

package cn.itcast.demo15;


import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStreamReader;

/**
 * @Auther: Forrest
 * @Date: 2020/4/23 09:50
 * @Description:
 */
public class Readtxt {
    public float[] read(String filePath,int filelength){
        float data[] = new float[filelength];
            try {
                File file = new File(filePath);
                if (file.isFile() && file.exists()) {
                    InputStreamReader isr = new InputStreamReader(new FileInputStream(file), "utf-8");
                    BufferedReader br = new BufferedReader(isr);
                    for (int i = 0; i < filelength; i++)
                        data[i] = Float.parseFloat(br.readLine());
                    br.close();
                } else {
                    System.out.println("文件不存在");
                }
            }catch (Exception e){
                System.out.println("文件读取错误");
            }
            return data;

    }
}