first commit

J07025 - DANH SÁCH KHÁCH HÀNG TRONG FILE.java

@@ -0,0 +1,58 @@
+import java.util.*;
+import java.io.*;
+import java.text.*;
+public class Main {
+    
+    static String cleanName(String s) {
+        String[] a = s.trim().split("\\s+");
+        for (int i = 0; i < a.length; i++) {
+            a[i] = Character.toString(a[i].charAt(0)).toUpperCase() + a[i].substring(1).toLowerCase();
+        }
+        return String.join(" ", a);
+    }
+
+    static String cleanDate(String s) {
+        String[] a = s.split("/");
+        for (int i = 0; i <= 1; i++) {
+            a[i] = String.format("%02d", Integer.parseInt(a[i]));
+        }
+        return String.join("/", a);
+    }
+
+    static class ob {
+        String code, name, gender, strdate, address;
+        Long date;
+
+        public ob(int i, String name, String gender, String date, String address) {
+            this.code = "KH" + String.format("%03d", i);
+            this.name = cleanName(name);
+            this.gender = gender;
+            this.strdate = cleanDate(date);
+            this.address = address;
+            try{
+                SimpleDateFormat f = new SimpleDateFormat("dd/mm/yyyy");
+                this.date = f.parse(date).getTime();
+            } catch (ParseException e) {
+                
+            }
+        }
+
+        @Override
+        public String toString() {
+            return code + " " + name + " " + gender + " " + address + " " + strdate;
+        }
+    }
+
+    public static void main(String[] args) throws IOException {
+        Locale.setDefault(Locale.US);
+        Scanner sc = new Scanner(new File("KHACHHANG.in"));
+        int n = sc.nextInt();
+        ArrayList<ob> a = new ArrayList<>();
+        sc.nextLine();
+        for (int i = 0; i < n; i++) {
+            a.add(new ob(i + 1, sc.nextLine(), sc.nextLine(), sc.nextLine(), sc.nextLine()));
+        }
+        a.sort((ob x, ob y) -> x.date.compareTo(y.date));
+        a.forEach(e -> System.out.println(e));
+    }
+}