我对如何正确地做这件事有点困惑。我有一些方法进入它,现在我已经齐腰深了。所以我想要做的是解析一个文本文件,每行都有一堆数字,就像这样。
1 10
2 12
3 13
ETC....
每一个被一个空格分隔。我已经做到了,我什至可以为对象中的变量分配正确的数字。我的事情是它不断覆盖数组,并且不会用文本文件中的数据填充它的其余部分。如果我打印出数组,我认为它应该基本上打印出文本文件。
public static void main(String[] args) {
Process [] pArray;
//just need to have 10 Process
pArray = new Process [10];
//delimiter to parse string
String delimiter = " ";
String[] tokens;
tokens = new String [10];
/*
* save this for input handeling
Scanner input = new Scanner( System.in );
System.out.println("Enter the Text file for data set");
String fileDestination = input.next();
* */
//get data from the file
File file = new File("C:/Users/Kenshin/Desktop/TestData.txt");
FileInputStream fis = null;
BufferedInputStream bis = null;
DataInputStream dis = null;
try {
fis = new FileInputStream(file);
// Here BufferedInputStream is added for fast reading.
bis = new BufferedInputStream(fis);
dis = new DataInputStream(bis);
// dis.available() returns 0 if the file does not have more lines.
while (dis.available() != 0) {
// this statement reads the line from the file and print it to
// the console.
int g = 0;
//System.out.println(dis.readLine());
tokens = dis.readLine().split(delimiter);
int aInt = Integer.parseInt(tokens[0]);
int bInt = Integer.parseInt(tokens[1]);
for( int i = 0; i < tokens.length; i ++)
{
//int aInt = Integer.parseInt(tokens[i]);
pArray[g] = new Process(aInt, bInt);
}
g++;
}
// dispose all the resources after using them.
fis.close();
bis.close();
dis.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
for(int i = 0; i < pArray.length; i ++)
{
System.out.print(pArray[i].arrivalTime + " ");
System.out.println(pArray[i].burstTime);
}
}