level-1

  

                                   Easy (Basics: Conditions & L )  

1. Bus Ticket Counter

Story:                                                                                                            

A conductor issues tokens to passengers. Each passenger must get a number in sequence.

Why: Helps students learn loops.

Logic:

• Input: number of passengers.
• Use for loop to print numbers 1 to n.
• Extension: use if inside loop to print only even tokens.

Program:

import java.util.Scanner;

public class program1 {

    public static void main(String[] args){

        int a;

        Scanner gopi= new Scanner(System.in);

        System.out.println("enter the no of passengers:");

        int n=gopi.nextInt();

        

        for(a=2;a<=n;a+=3)

        System.out.println("Odd no of passengers:"+a);

}

}

Output:

2. Shop Discount Calculator

Story:

A shop applies discounts depending on bill amount.

Why: Introduces if-else conditions.
Logic:

• Input: bill amount.
• If bill < 1000 → apply 10%.
• Else → apply 20%.
• Final price = bill - discount.

Program :

import java.util.Scanner;

public class program2

{

    public static void main(String[]args)

    {

        Scanner sc=new Scanner(System.in);

        float discount=0;

        System.out.println("Enter the bill amount:");

        int amount=sc.nextInt();

       

        if(amount<1000)

        {

            discount=amount*10/100;

        }

        else

        {

            discount=amount*20/100;

        }

        float price=amount-discount;

        System.out.println("final price:"+ price);

    }

}

Output:

3. School Attendance

Story:

Class teacher records attendance as "P" for present, "A" for absent.

Why: Helps in counting characters in a string.

Logic:

• Input: string like "PAPAPPPAA".
• Loop through string → count P and A.
• Print "Present = X, Absent = Y".

Program :

import java.util.Scanner;

public class program3{

    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);

        System.out.println("Enter the attendance:"); 

        String attendance = sc.nextLine();

        int presentCount = 0;

        int absentCount = 0;

        for (int i = 0; i < attendance. Length(); i++) {

            char ch = attendance.charAt(i);

            if (ch == 'P') {

                presentCount++;

            } else if (ch == 'A') {

                absentCount++;

            }

        }

        System.out.println("Total Attendance - Present: " + presentCount + ", Absent: " + absentCount);

        sc.close();

    }

}

Output :

 

import java.util.Scanner; public class program3{ public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.println("Enter the attendance:"); String attendance = sc.nextLine(); int presentCount = 0; int absentCount = 0; for (int i = 0; i < attendance.length(); i++) { char ch = attendance.charAt(i); if (ch == 'P') { presentCount++; } else if (ch == 'A') { absentCount++; } } System.out.println("Total Attendance - Present: " + presentCount + ", Absent: " + absentCount); sc.close(); } }