📄 Java Code Submission Thread

[codewithsoumyajit]

Welcome to the Java Code Submission Thread 🎯

Please submit your solution by following the format below:

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✅ Submission Guidelines

• Submit only your .java file
• Ensure your code is clean and properly formatted
• Use meaningful class and method names
• Add comments wherever necessary

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📂 Submission Format

Name:
File Name:
Code:

// Paste your complete .java code here

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🧩 Example Submission

Name: Soumyajit Nandi
File Name: PalindromeChecker.java

Code:

public class PalindromeChecker {

    public static boolean isPalindrome(String str) {
        String reversed = new StringBuilder(str).reverse().toString();
        return str.equalsIgnoreCase(reversed);
    }

    public static void main(String[] args) {
        String input = "madam";
        if (isPalindrome(input)) {
            System.out.println(input + " is a palindrome");
        } else {
            System.out.println(input + " is not a palindrome");
        }
    }
}

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⚠️ Important Notes

• Do not submit screenshots or external links
• Incomplete code will not be evaluated
• Avoid copying others' solutions

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Happy Coding 💻🔥

[debopriya-tech]

import java.util.Scanner;

public class SmartDataAnalyzer {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.println("Enter your name: ");
        String name=sc.nextLine();
        System.out.println("Enter your age: ");
        byte age=sc.nextByte();
        System.out.println("Enter your height in centimeter: ");
        float height=sc.nextFloat();
        System.out.println("Enter your weight in Kg: ");
        float weight=sc.nextFloat();
        float hm=height/100;
        float bmi=weight/(hm*hm);
        System.out.println("Hello "+name);
        System.out.println("Height in meters: "+hm);
        System.out.println("BMI: "+bmi);
        System.out.println("Rounded BMI: "+(int)bmi);

    }
}

[debopriya-tech]

public class PrecisionLossDetector {
    public static void main(String[] args) {
        double val=99.99;
        int num=(int) val;
        int round= (int) (val +0.5);
        System.out.println("Original Number: "+val);
        System.out.println("After direct conversion: "+num);
        System.out.println("After rounding logic: "+round);

    }
}

[debopriya-tech]

import java.util.Scanner;

public class GroceryBillingSystem {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.println("Enter price of item: ");
        float price=sc.nextFloat();
        System.out.println("Enter quantity: ");
        int quan=sc.nextInt();
        System.out.println("Enter Discount: ");
        float per=sc.nextFloat();

        float total=price*quan;
        float dis=total*(per/100);
        float fin=total-dis;
        
        System.out.println("Total: "+total);
        System.out.println("Discount: "+dis);
        System.out.println("Final Amount: "+fin);
        System.out.println("Rounded Amount: "+(int)fin);
        
    }
}

[debopriya-tech]

import java.util.Scanner;

public class TimeConverter {
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        System.out.println("Enter total Seconds: ");
        int total=sc.nextInt();
        int hour= total/3600;
        int min=(total%3600)/60;
        int sec=total%60;
        System.out.println("Hours: "+hour);
        System.out.println("Minutes: "+min);
        System.out.println("Seconds: "+sec);

    }
}

[debopriya-tech]

import java.util.Scanner;

public class SalaryCalculator {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.println("Enter your salary: ");
        double salary=sc.nextDouble();
        double hra=salary * 0.2;
        double da=salary * 0.1;
        double gross_sal=salary + hra + da;
        double tax=gross_sal*0.05;
        int round=(int) tax;
        System.out.println("HRA: "+hra);
        System.out.println("DA: "+da);
        System.out.println("Gross Salary: "+gross_sal);
        System.out.println("Tax: "+tax);
        System.out.println("Rounded Tax: "+round);

    }
}

[debopriya-tech]

import java.util.Scanner;

public class MarksAverageTrap {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.println("Enter marks of three subjects: ");
        int marks1=sc.nextInt();
        int marks2=sc.nextInt();
        int marks3=sc.nextInt();
        double avg=(marks1+marks2+marks3)/3;
        int davg=(marks1+marks2+marks3)/3;

        System.out.println("Correct Average: "+avg);
        System.out.println("Wrong Average: "+davg);

    }
}

[debopriya-tech]

import java.util.Scanner;

public class DigitalWalletSystem {
    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);
        System.out.println("Enter Initial balance: ");
        double balance= sc.nextDouble();
        System.out.println("Enter Expense 1: ");
        double exp1=sc.nextDouble();
        System.out.println("Enter Expense 2: ");
        double exp2=sc.nextDouble();
        double remain_balance=balance - exp1 -exp2;
        System.out.println("Remaining Balance: "+ remain_balance);
        System.out.println("Remaining Balance: "+(int) remain_balance);
        if (remain_balance<0){
            System.out.println("Warning : Insufficient Balance");
        }
    }
}

[shreyasardar137]

import java.util.*;
public class HealthMatric {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        System.out.print("Enter Name: ");
        String name = sc.nextLine();

        System.out.print("Enter Age: ");
        int age = sc.nextInt();

        System.out.print("Enter Height (in cm): ");
        double heightCm = sc.nextDouble();

        System.out.print("Enter Weight (in kg): ");
        double weight = sc.nextDouble();

        double heightM = heightCm / 100;

        double bmi = weight / (heightM * heightM);

        String status;
        if (bmi < 18.5) {
            status = "Underweight";
        } else if (bmi >= 18.5 && bmi < 24.9) {
            status = "Normal weight";
        } else if (bmi >= 25 && bmi < 29.9) {
            status = "Overweight";
        } else {
            status = "Obese";
        }

        System.out.println("- Health Report ---");
        System.out.println("Name: " + name);
        System.out.println("Age: " + age);
        System.out.println("BMI: " + bmi);
        System.out.println("Health Status: " + status);

        sc.close();

    }
}

[shreyasardar137]

public class Conversion {
    public static void main(String[] args) {

        double value = 99.99;

        int direct = (int) value;
        double temp = value + 0.5;
        int after = (int) temp;

        System.out.println("Original value: " + value);
        System.out.println("Rounded value (int): " + after);
    }
}

[shreyasardar137]

import java.util.Scanner;

public class BillingSystem {
    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);

        System.out.println("Enter price of item: ");
        double price = sc.nextDouble();

        System.out.println("Enter quantity: ");
        int quantity = sc.nextInt();

        System.out.println("Enter discount (%): ");
        double discount = sc.nextDouble();

        double total = price * quantity;

        double amount = total * discount / 100;

        double finalAmount = total - amount;

        double temp = finalAmount + 0.5;
        int roundedAmount = (int) temp;

        System.out.println("BILL DETAILS ");
        System.out.println("Total amount: " + total);
        System.out.println("Discount amount: " + amount);
        System.out.println("Final amount (before rounding): " + finalAmount);
        System.out.println("Final amount (rounded): " + roundedAmount);
    }
}

[shreyasardar137]

import java.util.Scanner;

public class Time {
    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);

        System.out.println("Enter total seconds: ");
        int totalSeconds = sc.nextInt();

        int hours = totalSeconds / 3600;
        int remaining = totalSeconds % 3600;
        int minutes = remaining / 60;
        int seconds = remaining % 60;

        System.out.println(" Time Breakdown ");
        System.out.println("Hours: " + hours);
        System.out.println("Minutes: " + minutes);
        System.out.println("Seconds: " + seconds);
    }
}

[shreyasardar137]

import java.util.Scanner;

public class Salary {
    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);
        
        System.out.println("Enter basic salary: ");
        double basic = sc.nextDouble();

        double hra = basic * 20 / 100;
        double da = basic * 10 / 100;
        double gross = basic + hra + da;
        double tax = gross * 5 / 100;
        double temp = tax + 0.5;
        int roundedTax = (int) temp;

        System.out.println("SALARY DETAILS");
        System.out.println("Basic Salary: " + basic);
        System.out.println("HRA (20%): " + hra);
        System.out.println("DA (10%): " + da);
        System.out.println("Gross Salary: " + gross);
        System.out.println("Tax (5%): " + tax);
        System.out.println("Rounded Tax: " + roundedTax);
    }
}

[shreyasardar137]

import java.util.Scanner;

public class Average {
    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);

        System.out.println("Enter marks of subject 1: ");
        int m1 = sc.nextInt();
        System.out.println("Enter marks of subject 2: ");
        int m2 = sc.nextInt();
        System.out.println("Enter marks of subject 3: ");
        int m3 = sc.nextInt();

        double correct = (m1 + m2 + m3) / 3.0;

        int sum = m1 + m2 + m3;
        double wrong=sum / 3;

        System.out.println("RESULT ");
        System.out.println("Correct Average: " + correct);
        System.out.println("Wrong Average: " + wrong);
    }
}

[shreyasardar137]

import java.util.Scanner;

public class Expense {
    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);

        System.out.println("Enter initial balance: ");
        double balance = sc.nextDouble();

        System.out.println("Enter expense 1: ");
        double exp1 = sc.nextDouble();

        System.out.println("Enter expense 2: ");
        double exp2 = sc.nextDouble();

        double remaining = balance - exp1 - exp2;
        double temp = remaining + 0.5;
        int rounded = (int) temp;

        System.out.println("EXPENSE SUMMARY ");
        System.out.println("Remaining Balance: " + remaining);
        System.out.println("Rounded Balance: " + rounded);

        if (remaining < 0) {
            System.out.println("Warning: Insufficient balance!");
        }
    }
}

[shreyasardar137]

public class test {
    public static void main(String[] args) {
        int num = 10;
        int user_age = 25;

        int result = 10 + 5 * 2;
        System.out.println(+result);
    }
}

[debopriya-tech]

Name: Debopriya Sett
File Name: CompoundAssignmentSimulator.java

Code:

//Problem 25

public class CompoundAssignmentSimulator {
    public static void main(String[] args) {
        int x = 10;
        x += 5;
        x *= 3;
        x -= 10;
        x /= 5;
        System.out.println("Final Value: "+x);
    }
}

[debopriya-tech]

Name: Debopriya Sett
File Name: MultiStepExpression.java

Code:

// Problem 26

public class MultiStepExpression {
    public static void main(String[] args) {
        int x = 5;
        int y = 10;
        int result = x++ + y-- + ++x + --y;
        /*
        Step 1: x++ = 5 --> x=6
        5 + y-- + ++x + --y
        Step 2: y-- = 10 --> y=9
        5 + 10 + ++x + --y
        Step 3: ++x = 6+1 = 7 --> x=7
        5 + 10 + 7 + --y
        Step 4: --y = 9-1 =8 --> y=8
        5 + 10 + 7 + 8 = 30
         */
        System.out.println("x: "+x);
        System.out.println("y: "+y);
        System.out.println("Result: "+result);
    }
}

[debopriya-tech]

Name: Debopriya Sett
File Name: AverageOfThreeNumbers.java

Code:

//Problem 27

import java.util.Scanner;
public class AverageOfThreeNumbers {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.println("Enter three numbers: ");
        int a = sc.nextInt();
        int b = sc.nextInt();
        int c = sc.nextInt();
        double average=(a+b+c)/3;
        System.out.println("Average: "+average);
    }
}

[debopriya-tech]

Name: Debopriya Sett
File Name: SecondsConverter.java

Code:

//Problem 28

import java.util.Scanner;
public class SecondsConverter {
    public static void main(String[] args) {

        Scanner sc=new Scanner(System.in);
        System.out.println("Enter total Seconds: ");
        int total=sc.nextInt();
        int min=total/60;
        int sec=total%60;
        System.out.println("Minutes: "+min);
        System.out.println("Seconds: "+sec);
    }
}

[bipasha02bipasha]

Name: Bipasha Mal
File Name: TotalMarksPercentage.java

Code:

package com.bipasha.basics;
import java.util.Scanner;
public class TotalMarksPercentage {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int m1 = 80, m2 = 70, m3 = 90;
        int total = m1 + m2 + m3;
        double percentage = (double) total / 300 * 100;
        System.out.println("Total: " + total);
        System.out.println("Percentage: " + percentage);
    }
}

[bipasha02bipasha]

Name: Bipasha Mal
File Name: SimpleInterestCalculator.java

Code:

package com.bipasha.basics;
import java.util.Scanner;
public class SimpleInterestCalculator {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int P = 1000;
        int R = 5;
        int T = 2;
        double SI = (P * R * T) / 100.0;
        System.out.println("Simple Interest: " + (int)SI);
    }
}

[bipasha02bipasha]

Name: Bipasha Mal
File Name: RectangleCalculator.java

Code:

package com.bipasha.basics;
import java.util.Scanner;
public class RectangleCalculator {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int length = 10;
        int width = 5;
        int area = length * width;
        int perimeter = 2 * (length + width);
        System.out.println("Area: " + area);
        System.out.println("Perimeter: " + perimeter);
    }
}

[bipasha02bipasha]

Name: Bipasha Mal
File Name: TemperatureConverter.java

Code:

package com.bipasha.basics;
import java.util.Scanner;
public class TemperatureConverter {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        double celsius = 25;
        double fahrenheit = (celsius * 9 / 5) + 32;
        System.out.println("Fahrenheit: " + fahrenheit);
    }
}

[bipasha02bipasha]

Name: Bipasha Mal
File Name: DigitSum.java

Code:

package com.bipasha.basics;
import java.util.Scanner;
public class DigitSum {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int num = 47;
        int lastDigit = num % 10;
        int firstDigit = num / 10;
        int sum = firstDigit + lastDigit;
        System.out.println("Sum of digits: " + sum);
    }
}

[bipasha02bipasha]

Name: Bipasha Mal
File Name: CompoundAssignmentSimulator.java

Code:

package com.bipasha.basics;
    public class CompoundAssignmentSimulator {
        public static void main(String[] args) {
            int x = 10;
            x += 5;   // x = x + 5
            x *= 3;   // x = x * 3
            x -= 10;  // x = x - 10
            x /= 5;   // x = x / 5
            System.out.println("Final Value: " + x);
    }
}

[bipasha02bipasha]

Name: Bipasha Mal
File Name: AverageOf3Numbers.java

Code:

package com.bipasha.basics;
public class AverageOf3Numbers {
    public static void main(String[] args) {
        int a = 10, b = 20, c = 30;
        double average = (a + b + c) / 3.0;
        System.out.println("Average: " + average);
    }
}

[bipasha02bipasha]

Name: Bipasha Mal
File Name: SecondsConverter.java

Code:

package com.bipasha.basics;
public class SecondsConverter {
    public static void main(String[] args) {
        int totalSeconds = 125;
        int minutes = totalSeconds / 60;
        int seconds = totalSeconds % 60;
        System.out.println("Minutes: " + minutes);
        System.out.println("Seconds: " + seconds);
    }
}

[bipasha02bipasha]

Name: Bipasha Mal
File Name: IncrementBehaviourTracker.java

Code:

package com.bipasha.basics;
public class IncrementBehaviorTracker {
    public static void main(String[] args) {
        int x = 5;
        int result = x++ + ++x;
        System.out.println("Final x: " + x);
        System.out.println("Result: " + result);
    }
}

[bipasha02bipasha]

Name: Bipasha Mal
File Name: ExpreesionEvaluator.java

Code:

package com.bipasha.basics;
public class ExpressionEvaluator {
    public static void main(String[] args) {
        int a = 10, b = 5, c = 2, d = 20, e = 5;
        int result = a + b * c - d / e;
        System.out.println("Result: " + result);
    }
}

[bipasha02bipasha]

Name: Bipasha Mal
File Name: MultiStepExpression.java

Code:

package com.bipasha.basics;
public class MultiStepExpression {
    public static void main(String[] args) {
        int x = 5;
        int y = 10;
        int result = x++ + y-- + ++x + --y;
        System.out.println("x: " + x);
        System.out.println("y: " + y);
        System.out.println("result: " + result);
    }
}