用Java快速读取大数据文件
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Reading large data files quickly in Java
提问by Eduardo
I have a large .txt file with data in lines in the format
我有一个大的 .txt 文件，其中包含格式为行的数据
String int int double int int int double
String int int double int int int double
eg:
例如：
monday 1 -1 43.5 2 1 1 -99999
tuesday 3 12 43.02 4 11 12 5.2
星期一 1 -1 43.5 2 1 1 -99999
星期二 3 12 43.02 4 11 12 5.2
My text file has approximately 20,000 lines so i need a quick method of reading this in java.
我的文本文件大约有 20,000 行，所以我需要一种在 Java 中快速阅读的方法。
What is the quickest method to read this kind of file in?
读取此类文件的最快方法是什么？
EDIT: I have used a function named textscan in MATLAB which worked perfectly (however i want to use java) so a similarly fast method would be perfect
编辑：我在 MATLAB 中使用了一个名为 textscan 的函数，它运行良好（但是我想使用 java），因此类似的快速方法将是完美的
采纳答案by Vibhu
String scan;
FileReader file = new FileReader("C:\Users\workspace\learn\scan.txt");
BufferedReader br = new BufferedReader(file);
while((scan = br.readLine()) != null)
{
System.out.println(scan);
}
br.close();
