import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.Scanner;
public class SortStringDemo {
public static void main(String[] args) throws IOException {
//读取文本数据
File file = new File("1.txt");
List list = new ArrayList<>();
Scanner scanner = new Scanner(file);
while (scanner.hasNextLine()) {
String temp = scanner.nextLine();
if (!temp.equals("")) {
list.add(temp);
}
}
scanner.close();
// sub字符串,再使用Integer.comparTo() 如:1 2 11 这种数字大小排序
Collections.sort(list, new Comparator() {
@Override
public int compare(String o1, String o2) {
Integer n1 = Integer.valueOf(o1.substring(o1.indexOf("|") + 1, o1.length()));
Integer n2 = Integer.valueOf(o2.substring(o2.indexOf("|") + 1, o2.length()));
return n1.compareTo(n2);
}
});
System.out.println("按照数字大小排序:\t" + list);
// sub字符串,再使用String.comparTo() 如:1 11 2 这种按照字符串序号排序
Collections.sort(list, new Comparator() {
@Override
public int compare(String o1, String o2) {
String string1 = o1.substring(o1.indexOf("|") + 1, o1.length());
String string2 = o2.substring(o2.indexOf("|") + 1, o2.length());
return string1.compareTo(string2);
}
});
System.out.println("按照子串排序:\t" + list);
//存储文本数据
File file2 = new File("2.txt");
PrintWriter pw = new PrintWriter(file2);
for (int i = 0; i < list.size(); i++) {
pw.println(list.get(i));
}
pw.close();
}
}