Lời giải tham khảo cho OOP2 nhập từ bàn phím

package firstproject;

import java.lang.*;
import java.io.*;

public class StringTester
{
    public static void main (String args[]) throws IOException
    {

        BufferedReader input_Obj=new BufferedReader(new InputStreamReader(System.in));

        System.out.println("Student one (Fullname-Birthday) : ");
        String student1=input_Obj.readLine();

        System.out.println("Student two (Fullname-Birthday) : ");
        String student2=input_Obj.readLine();


        String tmp1=student1.trim();
        String[] splitarray1=tmp1.split("-");
        String[] name1=splitarray1[0].split(" ");
        String tmp12=splitarray1[1].trim();
        String[] birthday1=tmp12.split("/");
        int dd1=Integer.parseInt(birthday1[0]);
        int mm1=Integer.parseInt(birthday1[1]);
        int yy1=Integer.parseInt(birthday1[2]);

        String tmp2=student2.trim();
        String[] splitarray2=tmp2.split("-");
        String[] name2=splitarray2[0].split(" ");
        String tmp22=splitarray2[1].trim();
        String[] birthday2=tmp22.split("/");
        int dd2=Integer.parseInt(birthday2[0]);
        int mm2=Integer.parseInt(birthday2[1]);
        int yy2=Integer.parseInt(birthday2[2]);

        System.out.println("Full name of Student 1 : "+splitarray1[0]);
        System.out.println("Birthday : "+splitarray1[1]);
        System.out.println("First name : "+name1[0]);
        int length1=name1.length;
        System.out.println("Last name : "+name1[length1-1]);

        System.out.println("Full name of Student 2 : "+splitarray2[0]);
        System.out.println("Birthday : "+splitarray2[1]);
        System.out.println("First name : "+name2[0]);
        int length2=name2.length;
        System.out.println("Last name : "+name2[length2-1]);

        if (name1[0].equals(name2[0])) System.out.println("Two Students's First Name is the same : "+name1[0]);
        else System.out.println("The Student's First Names is diferent");
       
        if (yy1>yy2) System.out.println("Youngest Student is  : "+splitarray1[0]);
        if (yy1<yy2) System.out.println("Youngest Student is  : "+splitarray2[0]);
        if (yy1==yy2)
        {
            if (mm1>mm2) System.out.println("Youngest Student is : "+splitarray1[0]);
            if (mm1<mm2) System.out.println("Youngest Student is : "+splitarray2[0]);
            else
            {
                if (dd1>=dd2) System.out.println("Youngest Student is : "+splitarray1[0]);
                if (dd1<dd2)  System.out.println("Youngest Student is : "+splitarray2[0]);
            }

        }
    }
}