Targilei tahbir 1.1-3.8

import java.util.Scanner;

public class testerChoice {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        //Targi 1.l
       final double PI = Math.PI;
        System.out.println("Enter the radius: ");
        int radius =  scan.nextInt();
        System.out.printf("Circle's preimeter: %f\n"+" Circles square: %f \n", radius*radius*PI, radius*2*PI);

        //Targil 1.2
        final int TOAST_COST = 12, CHEAP_ADD = 2, EXP_ADD = 3;
        int mySandwich = 0;
        System.out.println("Do you want some sandwiches? 0 for nothing");
        mySandwich += mySandwich += scan.nextInt() * TOAST_COST;
        System.out.println("How much cheap additions do you want? 0 for nothing");
        mySandwich += scan.nextInt() * CHEAP_ADD;
        System.out.println("How much expensive additions do you want? 0 for nothing");
        mySandwich += scan.nextInt() * EXP_ADD;
        System.out.println("Your sandwich cost: "+ mySandwich);

        //Targil 1.3
        final int KM_PRICE = 5, WORK_PRICE = 1;
        final double TIPS = 1.1;
        int price, weight, distance, floor;
        System.out.println("Enter the price, the weight of furniture, distance to home, and the floor: ");
        price = scan.nextInt();
        weight = scan.nextInt();
        distance = scan.nextInt();
        floor = scan.nextInt();
        System.out.printf("Total price: %d",(int)(price*TIPS+floor*weight*WORK_PRICE+distance*KM_PRICE));

       //Targil 2.1
        System.out.println("Enter your age: ");
        int age_2_1 = scan.nextInt();
        System.out.printf("You are - %s", age_2_1<18?"Tzair":"Boger");

       //Targil 2.2
        String res = "You are: ";
        System.out.println("Enter your age: ");
        int age_2_2 = scan.nextInt();
        if(age_2_2<18){
            res+="Tzair";
        }else if(age_2_2<65){
            res+="Boger";
        }else{
            res+="Pensioner";
        }
        System.out.println(res);

        //Targil 2.3
        System.out.println("Enter a three-digit number: ");
        int num = scan.nextInt();
        if(num%10==num/10){
            System.out.println("It's good");
        }

        //Targil2.4
        System.out.println("Enter a three-digit number: ");
        int num_2_4 = scan.nextInt();
        if(((num_2_4%100)/10==num_2_4%10)&&(num_2_4/100==num_2_4%10)) {
            System.out.println("It's good");
        }

        //Targil 2.5
        System.out.println("Enter a two-digit number: ");
        int num_2_5 = scan.nextInt();
        if(num_2_5/10!=9){ //מספר שמאלי לא 9 אחרת אין מה לבדוק
            if((num_2_5/10)+1==num_2_5%10){
                System.out.println("It's good");
            }
        }

        //Targil 2.6
        System.out.println("Enter a three-digit number: ");
        int num_2_6 = scan.nextInt();
        //מספרים שמאלי ואמצעי הם לא 9 אחרת אין מה לבדוק
        if((num_2_6/100!=9)&&(num_2_6/10%10!=9)) {
            //אם המספר הכי שמאלי פחות ב1 ממספר באמצע וגם מספר בעמצע פחות ב1 ממספר הכי ימיני
            if ((num_2_6 / 100 + 1 == (num_2_6 / 10 % 10)) && (num_2_6 /10 % 10 + 1 == num_2_6 % 10)) {
                System.out.println("It's good");
            }
        }

        //Targil 2.7
        System.out.println("Enter tank capacity and how much gas in the tank: ");
        System.out.printf("%s", (scan.nextInt() * 0.15<scan.nextInt()) ? "You don't need gas" : "You need more gas");

        //Targil 2.8
        System.out.println("Enter a time for finish runing: ");
        int f_time = scan.nextInt();
        String res_2_8 = "You are in the group: ";
        if(f_time<=50){
            res_2_8+="A";
        }else if(f_time<=60){
            res_2_8+="B";
        }else{
            res_2_8+="C";
        }
        System.out.println(res_2_8);

        //Targil 2.9
        System.out.println("Enter date: ");
        int date_2_9 = scan.nextInt();
        int year = date_2_9%10000;
        int month = (date_2_9/10000)%100;
        int day = date_2_9/1000000;
        System.out.printf("The year if %d, the month is %d, the day %d", year, month, day);

        //Targil 2.10
        System.out.println("Enter date: ");
        int date_2_10 = scan.nextInt();
        int month_2_10 = (date_2_10/10000)%100;
        String res_2_10 = "The season of your date is: ";
        if ((month_2_10==12)||(month_2_10==1)||(month_2_10==2)){
            res_2_10+="winter";
        }else if ((month_2_10==3)||(month_2_10==4)||(month_2_10==5)){
            res_2_10+="spring";
        }else if ((month_2_10==6)||(month_2_10==7)||(month_2_10==8)){
            res_2_10+="summer";
        }else {
            res_2_10 += "autumn";
        }
        System.out.printf(res_2_10);

        //Targil 3.1
        for(int i=0;i<5;){
            if(scan.nextInt()%2==0){
                i+=1;
            }
        }

        //Targil 3.2
        int counter_3_2=0;
        for(int i=0;i<10; i+=1){
            if(scan.nextInt()%2==0){
                counter_3_2+=1;
            }
        }
        System.out.println("Amount of event numbers: "+counter_3_2);

        //Targil 3.3
        int count_3_3;
        for(count_3_3=0;count_3_3<5;){
            System.out.println("Enter letter: ");
            char ot = scan.next().charAt(0);
            if((ot>='A')&&(ot<='Z')){
                count_3_3+=1;
            }
        }
        System.out.printf("You entered %d letters",count_3_3);

        //Targil 3.4
        int counter_3_4=0;
        for(int i=0; i<10; i+=1){
            System.out.println("Enter letter: ");
            char ot_3_4 = scan.next().charAt(0);
            if((ot_3_4>='a')&&(ot_3_4<='a')){
                counter_3_4 += 1;
            }
        }
        System.out.printf("You entered %d lowercase letters",counter_3_4);

        //Targil 3.5
        int num_3_5;
        do{
            System.out.println("Enter two-digit number: ");
            num_3_5 = scan.nextInt();
        }while(num_3_5%11!=0);

        //Targil 3.6
        int num_3_6;
        do{
            System.out.println("Enter three-digit number: ");
            num_3_6 = scan.nextInt();
        }while(num_3_6/100>0);

        //Targil 3.7
        int num_3_7;
        do{
            System.out.println("Enter three-digit number: ");
            num_3_7 = scan.nextInt();
        }while(num_3_7%7!=0);

        //Targil 3.8
        int num_3_8 = scan.nextInt();
        for(int i=1; i<=num_3_8; i+=1){
            if(i%7==0){
                System.out.println("Boom");
            }else{
                System.out.print(i+" ");
            }
        }