![](/img/trans.png)
[英]How to read txt file with slashes “/” with scanner input and reads certain parts?
[英]How to read txt file with slashes “/” with scanner input and put them into arrays/strings
我想知道如何读取带有斜杠的文本文件并将它们放入 arrays 中? 我似乎无法弄清楚如何拆分它们。
TXT 文件内容:
ID Name Price Stock
00011 / Call of Duty: Modern Warfare / 2499 / 10
00012 / The Witcher 3: Wild Hunt / 1699 / 15
00013 / Doom Eternal / 2799 / 20
00014 / Outlast 2 / 1999 / 11
00015 / Forza Horizon 4 / 2799 / 5
这是我获取 ID 的示例代码:
File file1 = new File("stock\\consoles\\consoles.txt");
int ctr = 0;
try {
Scanner s1 = new Scanner(new File(String.valueOf(file1)));
while (s1.hasNextLine()) {
ctr = ctr + 1;
s1.next();
s1.nextLine();
}
String[] ID = new String[ctr];
Scanner s2 = new Scanner(new File(String.valueOf(file1)));
for (int i = 0; i < ctr; i++) {
ID[i] = s2.next();
s2.nextLine();
System.out.println(Arrays.toString(ID));
}
} catch (FileNotFoundException ex) {
ex.printStackTrace();
}
}
当我运行代码时,我得到了这个:
[00011, null, null, null, null]
[00011, 00012, null, null, null]
[00011, 00012, 00013, null, null]
[00011, 00012, 00013, 00014, null]
[00011, 00012, 00013, 00014, 00015]
预期的 output 将是:
00011
00012
00013
00014
00015
我想将其放入 ID、名称、价格和库存的 arrays 中,形式为:
String[] ID = new String[ctr];
String[] NAME = new String[ctr];
String[] PRICE = new String[ctr];
String[] STOCK = new String[ctr];
任何帮助,将不胜感激。 谢谢你。
尝试这个
File file = new File("C:\\Users\\***\\Desktop\\name.txt");
Scanner sc = new Scanner(file);
String[] ids=new String[5]; //---- set your array length
int counter=0;
while(sc.hasNext()) {
String data=sc.nextLine();
if(data.contains("/")) { // ignores your data header
String[] elements=data.split("/");
ids[counter]=elements[0].trim();
// other elements[x] can be saved in other arrays
counter++;
}
}
for(String i:ids) {
System.out.println(i);
}
这将为您提供 output:
00011
00012
00013
00014
00015
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.