first commit

2022-12-15 23:51:04 +07:00
commit 87d51fb251
292 changed files with 12623 additions and 0 deletions
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+danhsachsinhvien1/SinhVien.java
+package danhsachsinhvien1;
+
+import java.io.*;
+import java.text.*;
+import java.util.*;
+
+public class SinhVien implements Serializable{
+    private String ma, ten, lop;
+    private Date ngaysinh;
+    private float gpa;
+
+    public SinhVien(int id, String ten, String lop, String ngaysinh, float gpa) throws ParseException{
+        this.ma = String.format("B20DCCN%03d", id);
+        this.ten = ten;
+        this.lop = lop;
+        SimpleDateFormat f = new SimpleDateFormat("dd/MM/yyyy");
+        this.ngaysinh = f.parse(ngaysinh);
+        this.gpa = gpa;
+    }
+    @Override 
+    public String toString(){
+        SimpleDateFormat f = new SimpleDateFormat("dd/MM/yyyy");
+        return ma + " " + ten + " " + lop + " " + f.format(ngaysinh) + " " + String.format("%.2f", gpa);
+    }
+}
+
+danhsachsinhvien1/test.java
+package danhsachsinhvien1;
+import java.util.*;
+import java.io.*;
+
+public class test {
+    public static void main(String[] args) throws IOException, ClassNotFoundException{
+        ObjectInputStream o = new ObjectInputStream(new FileInputStream("SV.in"));
+        ArrayList<SinhVien> a = (ArrayList<SinhVien>) o.readObject();
+        a.forEach(e -> System.out.println(e));
+    }
+}
+