Question

怎样才能将文本文件中的内容读入到一个数组中去

Answer 1

// 直接给一个只读一行的吧，呵呵，数字之间以空格来分隔public static void main(String[] args) throws Exception {File file = new File("src/test.txt");double[] a = getLineFromTxt(file," ");for(int i = 0; i< a.length; i++){System.out.println("a["+i+"] = "+a[i]);}} test中的数据以空格隔开 12 32 32.02 public static double[] getLineFromTxt(File file, String split) throws Exception{BufferedReader br = new BufferedReader(new FileReader(file));String firstLine = br.readLine(); //就读第一行哦String[] arrs = firstLine.split(" ");//将字符数组转为double数组double[] arr = new double[arrs.length];for(int i = 0; i< arr.length; i++){arr[i] = Double.parseDouble(arrs[i]);}if(br!= null){br.close();br = null;}return arr;}