Java Lesson 2 classwork

import java.util.Scanner;
import java.lang.Math;

public class tester {

    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);

        //Targil 3
        int test_grade, homework_avr, exercise;
        String res;
        System.out.println("Enter your test grade(0-100), average of homework(0-10), maden exersises(0-8)");
        test_grade = sc.nextInt();
        homework_avr = sc.nextInt();
        exercise = sc.nextInt();
        if (exercise<=4){res = "Fail";}
        else if(homework_avr>4&&homework_avr<7){}








        //Targil 2
        /*int weight, age, height;
        double yahas;
        boolean tnai_1, tnai_2;
        String res = "No menu for you";
        System.out.println("Please enter your age, weight(kg), height(sm) separeted by space");
        age= sc.nextInt();
        weight=sc.nextInt();
        height=sc.nextInt();
        yahas = height/weight;
        tnai_1=yahas>0.5&&yahas<=2.0;
        tnai_2=yahas>2.0&&yahas<3.5;
        if (tnai_1){res ="A menu";}
        else if(tnai_2){
            if(age>=11&&age<=20){res="B menu";}
            else if(age>20&&age<41){res="C menu";}
        }
        System.out.println(res);*/

        //Targil 1
        /*  int a1, a2, a3, a4, a5, a6, a7, a8;
        int b1, b2, b3, b4, b5, b6, b7, b8;
        int c = 30;
        boolean res;

        a1 = a2 = a3 = a4 = a5 = a6 = a7 = a8 = 2;
        b1 = b2 = b3 = b4 = b5 = b6 = b7 = b8 = 10;

        a1 = b1++;                    // a1=11 b1=11
        a2 = b2++ / 2;                // a2=5 b2=11
        a3 = b3 * c;                  // a3=300 b3=10
        a4 *= b4;                     // a4=20 b4=10
        a5 *= b5--;                   // a5=18 b5=9
        a6 *= b6++;                   // a6=22 b6=11
        a7 = a7 * b7 + c % 4 - 5 / 2; // a7=20 b7=10
        res = b8 > c;                 // res=false b8=10

        a1 = a2 = a3 = a4 = a5 = a6 = a7 = 1;
        b1 = b2 = b3 = b4 = b5 = b6 = b7 = 10;

        res = (true == (c - 25 > 2 + a1++));      // res=true a1=2
        res = (b2 > 5) || (b2 == 12);             // res=true
        res = (b3 < 5) || (b3 == 12);             // res=false
        res = (b4 > 5) && (b4 == 12);             // res=false
        res = (b5 < 5) && (b5 == 12);             // res=false
        res = (b6 == 8 || b6 == 5 && a6 < 0);     // res=false
        res = ((b7 == 0) || (b7 == 7) && a7 < 0); // res=false*/

        }
}