Switch Statement Example in Java Swing Package

import javax.swing.JOptionPane;
    class Switch{
        public static void main(String[]args) throws Exception{
            String input = JOptionPane.showInputDialog("Enter");
            int percentage = Integer.parseInt(input);
        switch(percentage){
            case 90:
                JOptionPane.showMessageDialog(null, "A+ Grade");
                    break;
            case 80:
                JOptionPane.showMessageDialog(null, "A Grade");
                    break;
            case 70:
                JOptionPane.showMessageDialog(null, "B Grade");
                    break;
            case 60:
                JOptionPane.showMessageDialog(null, "C Grade");
                    break;
            case 50:
                JOptionPane.showMessageDialog(null, "D Grade");
                    break;
            case 40:
                JOptionPane.showMessageDialog(null, "IMPROVED");
                    break;
            default:
                JOptionPane.showMessageDialog(null, "Fail");
               
        }
        }
    }

Marksheet In Else-If Statement Java Program Swing Package

import javax.swing.JOptionPane;
    class IfElseMarksheet{
        public static void main(String[]args) throws Exception{
            String a = JOptionPane.showInputDialog("Enter Java Marks");
            int java = Integer.parseInt(a);
            String b = JOptionPane.showInputDialog("Enter PHP Marks");
            int php = Integer.parseInt(b);
            String c = JOptionPane.showInputDialog("Enter VB Marks");
            int vb = Integer.parseInt(c);
            String d = JOptionPane.showInputDialog("Enter C++ Marks");
            int cpp = Integer.parseInt(d);
            String e = JOptionPane.showInputDialog("Enter Ruby Marks");
            int ruby = Integer.parseInt(e);
           
            int total = 500;
            int obtained = java + php + cpp + vb + ruby;
            int percentage = obtained * 100 / total;
           
            if(java >39){
                if(php > 39)
                if(vb >  39)
                if(cpp > 39)
                if(ruby > 39)
                if(percentage < 100)
                if(percentage >= 80)
               
JOptionPane.showMessageDialog(null, "Total Marks Are :" + total +
                 "\n Obtained Marks Are : " + obtained +
                 "\n Percentage is : " + percentage +"%" +
                 "\n You Are Pass" + "\n You Got A+ Grade");
}
       
           else if(java >39){
                if(php > 39)
                if(vb >  39)
                if(cpp > 39)
                if(ruby > 39)
                if(percentage <  80)
                if(percentage >= 70)
               
JOptionPane.showMessageDialog(null, "Total Marks Are :" + total +
                 "\n Obtained Marks Are : " + obtained +
                 "\n Percentage is : " + percentage +"%" +
             
                              "\n You Are Pass" + "\n You Got A Grade");
}
           
           else if(java >39){
                if(php > 39)
                if(vb >  39)
                if(cpp > 39)
                if(ruby > 39)
                if(percentage <  70)
                if(percentage >= 60)              
JOptionPane.showMessageDialog(null, "Total Marks Are :" + total +
                 "\n Obtained Marks Are : " + obtained +
                 "\n Percentage is : " + percentage +"%" +
                 "\n You Are Pass" + "\n You Got B Grade");
}
           
           else if(java >39){
                if(php > 39)
                if(vb >  39)
                if(cpp > 39)
                if(ruby > 39)
                if(percentage <  60)
                if(percentage >= 50)              
JOptionPane.showMessageDialog(null, "Total Marks Are :" + total +
                 "\n Obtained Marks Are : " + obtained +
                 "\n Percentage is : " + percentage +"%" +
                 "\n You Are Pass" + "\n You Got C Grade");
}
           
           else if(java >39){
                if(php > 39)
                if(vb >  39)
                if(cpp > 39)
                if(ruby > 39)
                if(percentage <  50)
                if(percentage >= 40)              
JOptionPane.showMessageDialog(null, "Total Marks Are :" + total +
                 "\n Obtained Marks Are : " + obtained +
                 "\n Percentage is : " + percentage +"%" +
                 "\n You Are Pass" + "\n You Got D Grade");
}

            else{
                JOptionPane.showMessageDialog(null, "Total Marks Are :" + total +
                 "\n Obtained Marks Are : " + obtained +
                 "\n Percentage is : " + percentage +"%" +
                 "\n You Are Fail");
}

        }
    }

Operator Selector Calculator Java Program

Operator Based Calculator Using Swing Package

import javax.swing.JOptionPane;
    class OperatorCalc{
        public static void main(String[]args){
            String operator = JOptionPane.showInputDialog("Enter any Operator" );
            String op = operator;
           
            String v1 = JOptionPane.showInputDialog("Enter First Value" );
            int value1 = Integer.parseInt(v1);
           
            String v2 = JOptionPane.showInputDialog("Enter Second Value" );
            int value2 = Integer.parseInt(v2);

   
    if (!(op == "+" || op == "-" || op == "*" || op == "/" || op == "%" ))
        JOptionPane.showMessageDialog(null, " Enter a valid Operator");
           
           
    if( op == "+" )
        JOptionPane.showMessageDialog(null, " Addition is " + (value1 + value2) );
           
    if( op == "-" )
        JOptionPane.showMessageDialog(null, " Subtraction " + (value1 - value2) );
           
    if( op == "*" )
        JOptionPane.showMessageDialog(null, " Multiplication is " + (value1 * value2) );
           
    if( op == "/" )
        JOptionPane.showMessageDialog(null, " Division is " + (value1 / value2) );
           
    if( op == "%" )
        JOptionPane.showMessageDialog(null, " Reminder is " + (value1 % value2) );
           
        }
    }

Menu Based Calculator Java Program

GUI Based Menu Calculator Using Swing Package

import javax.swing.JOptionPane;
    class MenuCalc{
        public static void main(String[]args) throws Exception{
            String select = JOptionPane.showInputDialog( "Enter Number 1-5" +
                                                        "\n 1 == Addition " +
                                                        "\n 2 == Subtraction " +
                                                        "\n 3 == Multiplication " +
                                                        "\n 4 == Division " +
                                                       "\n 5 == Reminder ");
            int Menu = Integer.parseInt(select);

            String v1 = JOptionPane.showInputDialog( "Enter First Value ");
            int value1 = Integer.parseInt(v1);
           
            String v2 = JOptionPane.showInputDialog( "Enter Second Value ");
            int value2 = Integer.parseInt(v2);
           
            if(Menu == 1)
            JOptionPane.showMessageDialog(null, value1 + value2);
       
            if(Menu == 2)
            JOptionPane.showMessageDialog(null, value1 - value2);

            if(Menu == 3)
            JOptionPane.showMessageDialog(null, value1 * value2);
       
            if(Menu == 4)
            JOptionPane.showMessageDialog(null, value1 / value2);

            if(Menu == 5)
            JOptionPane.showMessageDialog(null, value1 % value2);
       
            if(!( Menu == 1 || Menu == 2 || Menu == 3 || Menu == 4 || Menu == 5))
            JOptionPane.showMessageDialog(null, " Enter Valid Menu ");
       
        }
    }

Billing System Java Program

Java Program Billing System According to Units Using `util` Package

import java.util.Scanner;
    class HESCOBill{
        public static void main(String[]args) throws Exception{
            Scanner s = new Scanner(System.in);
            System.out.print(" Enter Units ");
                String bill = s.nextLine();
                int units = Integer.parseInt(bill);
            if( units >= 1 && units <=100 )
                System.out.print("Your bill is " + units * 2 );
            if( units > 100 && units <=200 )
                System.out.print("Your bill is " + units * 4 );
            if( units > 200 && units <= 300 )
                System.out.print("Your bill is " + units * 6 );
            if( units > 300 && units <= 400 )
                System.out.print("Your bill is " + units * 8 );
            if( units > 400 )
                System.out.print("Your bill is " + units * 10 );
        }
    }

Java Program (Age Comparison)

THREE AGE COMPARISON IN SWING PACKAGE

import javax.swing.JOptionPane;

    class Three_Age{

        public static void main(String[]args) throws Exception{

            String text = JOptionPane.showInputDialog("Enter First Age");

            int Age1 = Integer.parseInt(text);

            String text2 = JOptionPane.showInputDialog("Enter First Age");

            int Age2 = Integer.parseInt(text2);

            String text3 = JOptionPane.showInputDialog("Enter First Age");

            int Age3 = Integer.parseInt(text3);

    

        if( Age1 > Age2 && Age1 > Age3 )

            JOptionPane.showMessageDialog( null, Age1 + " is Greater" );

        if( Age2 > Age1 && Age2 > Age3 )

            JOptionPane.showMessageDialog( null, Age2 + " is Greater" );

        if( Age3 > Age1 && Age3 > Age2 )

            JOptionPane.showMessageDialog(null, Age3 + " is Greater" );

        if ( Age1 < Age2 && Age1 < Age3 )

            JOptionPane.showMessageDialog( null, Age1 + " is Smaller" );

        if( Age2 < Age1 && Age2 < Age3 )

            JOptionPane.showMessageDialog( null, Age2 + " is Smaller" );

        if( Age3 < Age1 && Age3 < Age2 )

            JOptionPane.showMessageDialog(null, Age3 + " is Smaller" );

        }

    }

Java Program (Complete Marksheet Using Swing)

COMPLETE MARKSHEET USING SWING PACKAGE

import javax.swing.JOptionPane;
    class swingMarksheet{
        public static void main(String[]args) throws Exception{
            String a = JOptionPane.showInputDialog("Enter Java Marks");
            int java = Integer.parseInt(a);
            String b = JOptionPane.showInputDialog("Enter PHP Marks");
            int php = Integer.parseInt(b);
            String c = JOptionPane.showInputDialog("Enter VB Marks");
            int vb = Integer.parseInt(c);
            String d = JOptionPane.showInputDialog("Enter C++ Marks");
            int cpp = Integer.parseInt(d);
            String e = JOptionPane.showInputDialog("Enter Ruby Marks");
            int ruby = Integer.parseInt(e);
           
            int total = 500;
            int obtained = java + php + cpp + vb + ruby;
            int percentage = obtained * 100 / total;
           
            if(java >39 && php >39 && vb >39 && cpp >39 && ruby >39 && (percentage <100 && percentage >=80))
               
JOptionPane.showMessageDialog(null, "Total Marks Are :" + total +
                 "\n Obtained Marks Are : " + obtained +
                 "\n Percentage is : " + percentage +"%" +
                 "\n You Are Pass" + "\n You Got A+ Grade");

            if(java >39 && php >39 && vb >39 && cpp >39 && ruby >39 && (percentage <80 && percentage >=70))
               
JOptionPane.showMessageDialog(null, "Total Marks Are :" + total +
                 "\n Obtained Marks Are : " + obtained +
                 "\n Percentage is : " + percentage +"%" +
                 "\n You Are Pass" + "\n You Got A Grade");

           
           if(java >39 && php >39 && vb >39 && cpp >39 && ruby >39 && (percentage <70 && percentage >=60))
               
JOptionPane.showMessageDialog(null, "Total Marks Are :" + total +
                 "\n Obtained Marks Are : " + obtained +
                 "\n Percentage is : " + percentage +"%" +
                 "\n You Are Pass" + "\n You Got B Grade");

           
           if(java >39 && php >39 && vb >39 && cpp >39 && ruby >39 && (percentage <60 && percentage >=50))
               
JOptionPane.showMessageDialog(null, "Total Marks Are :" + total +
                 "\n Obtained Marks Are : " + obtained +
                 "\n Percentage is : " + percentage +"%" +
                 "\n You Are Pass" + "\n You Got C Grade");

           
           if(java >39 && php >39 && vb >39 && cpp >39 && ruby >39 && (percentage <50 && percentage >=40))
               
JOptionPane.showMessageDialog(null, "Total Marks Are :" + total +
                 "\n Obtained Marks Are : " + obtained +
                 "\n Percentage is : " + percentage +"%" +
                 "\n You Are Pass" + "\n You Got D Grade");


            if(java <40 || php <40 || vb <40 || cpp <40 || ruby <40 || percentage < 40)
JOptionPane.showMessageDialog(null, "Total Marks Are :" + total +
                 "\n Obtained Marks Are : " + obtained +
                 "\n Percentage is : " + percentage +"%" +
                 "\n You Are Fail");
                                                 
        }
    }

Java Program (Find Out Greater and Smaller Age)

FIND OUT SMALLER AND LARGER AGE FROM TAKEN INPUT (SWING PACKAGE)

import javax.swing.JOptionPane;
    class FiveAge{
        public static void main(String[]args) throws Exception{
            String text = JOptionPane.showInputDialog("Enter First Age");
            int Age1 = Integer.parseInt(text);

            String text2 = JOptionPane.showInputDialog("Enter Second Age");
            int Age2 = Integer.parseInt(text2);

            String text3 = JOptionPane.showInputDialog("Enter Third Age");
            int Age3 = Integer.parseInt(text3);
   
            String text4 = JOptionPane.showInputDialog("Enter Fourth Age");
            int Age4 = Integer.parseInt(text4);
   
            String text5 = JOptionPane.showInputDialog("Enter Fifth Age");
            int Age5 = Integer.parseInt(text5);
   
            if( Age1 > Age2 && Age1 > Age3 && Age1 > Age4 && Age1 > Age5 )
            JOptionPane.showMessageDialog( null, Age1 + " is Greater" );
       
            if( Age2 > Age1 && Age2 > Age3 && Age2 > Age4 && Age2 > Age5 )
            JOptionPane.showMessageDialog( null, Age2 + " is Greater" );
       
            if( Age3 > Age1 && Age3 > Age2 && Age3 > Age4 && Age3 > Age5 )
            JOptionPane.showMessageDialog(null, Age3 + " is Greater" );
       
            if ( Age4 > Age1 && Age4 > Age2 && Age4 > Age3 && Age4 > Age5 )
            JOptionPane.showMessageDialog( null, Age4 + " is Greater" );
       
            if( Age5 > Age1 && Age5 > Age2 && Age5 > Age3 && Age5 > Age4 )
            JOptionPane.showMessageDialog( null, Age5 + " is Greater" );
   
            if( Age1 < Age2 && Age1 < Age3 && Age1 < Age4 && Age1 < Age5 )
            JOptionPane.showMessageDialog(null, Age1 + " is Smaller" );
       
            if( Age2 < Age1 && Age2 < Age3 && Age2 < Age4 && Age2 < Age5 )
            JOptionPane.showMessageDialog(null, Age2 + " is Smaller" );
       
            if( Age3 < Age1 && Age3 < Age2 && Age3 < Age4 && Age3 < Age5 )
            JOptionPane.showMessageDialog( null, Age3 + " is Smaller" );
       
            if( Age4 < Age1 && Age4 < Age2 && Age4 < Age3 && Age4 < Age5 )
            JOptionPane.showMessageDialog( null, Age4 + " is Smaller" );
       
            if( Age5 < Age1 && Age5 < Age2 && Age5 < Age3 && Age5 < Age4 )
            JOptionPane.showMessageDialog(null, Age5 + " is Smaller" );      
        }
    }

Java Program

GUI (Swing) Based Even/Odd Number Recognition Java Program

import javax.swing.JOptionPane;

    class SwingEvenOdd{

        public static void main(String[]args) throws Exception{

            String season = JOptionPane.showInputDialog("Enter Number");

            int asd = Integer.parseInt(season);

        

  if(asd % 2 == 1)

                JOptionPane.showMessageDialog(null, "Number " + asd + " is odd");

  if(asd % 2 == 0)

                JOptionPane.showMessageDialog(null, "Number " + asd + " is even");                      

            

        }

    }

Java Program

GUI (Swing) Based Season Identifier Java Program

import javax.swing.JOptionPane;

    class SeasonIdentifier{

        public static void main(String[]args) throws Exception{

               String season = JOptionPane.showInputDialog("Enter season number");

            int asd = Integer.parseInt(season);

            

            if(asd == 1 || asd == 11 || asd == 12)

                JOptionPane.showMessageDialog(null, "The Number: " + asd + "\n Wellcome to WINTER season");

            if(asd == 2 || asd == 3 || asd == 4)

                JOptionPane.showMessageDialog(null, "The Number: " + asd + "\n Wellcome to SPRING season");

            if(asd == 5 || asd == 6 || asd == 7)

                JOptionPane.showMessageDialog(null, "The Number: " + asd + "\n Wellcome to SUMMER season");

            if(asd == 8 || asd == 9 || asd == 10)

                JOptionPane.showMessageDialog(null, "The Number: " + asd + "\n Wellcome to AUTUMN season");

            if(asd < 1 || asd > 12)

                JOptionPane.showMessageDialog(null, "Invalid Month Number");

        }

    }

Java Program

GUI Based Payroll System Java Program

import javax.swing.JOptionPane;

    class salary{

        public static void main(String[]args) throws Exception{

            

            String pay = JOptionPane.showInputDialog("Enter Basic Pay");

            int basicpay = Integer.parseInt(pay);

            

                    JOptionPane.showMessageDialog(null, "Basic Salary: " +  pay);

            

            int houserent = basicpay * 25 / 100;

            int conveyance = basicpay * 15 / 100;

            int medical = basicpay * 35 / 100;

            int governance = basicpay * 5 / 100;

            int total_salary = basicpay + houserent + conveyance + medical + governance;

            

            int tax = basicpay * 14 / 100;

            int zakat = basicpay * 25 / 100;

            int gross_pay = tax + zakat;

            

            int net_salary = total_salary - gross_pay;

                        

        JOptionPane.showMessageDialog(null, "ALLOUNCES " + 

                    "\n House rent 35% : " + houserent +

                    "\n Conveyance is 15% : " + conveyance +

                    "\n Medical Allounce 35% : " + medical + 

                    "\n Governance Allounce 5% : " + governance +

                    "\n Total Salary is : " + total_salary );

        

        JOptionPane.showMessageDialog(null, "DEDUCTIONS " + 

                    "\n Government Tax : " + tax + "\n Annual Zakat :"                                       + zakat + "\n Total Deductions " + gross_pay);

        JOptionPane.showMessageDialog(null, "Net Salary " + net_salary );

        }

    }

/*given * 100 divide total == percentage

    

    */

Java Program

GUI Based Currency Converter Java Program

import javax.swing.JOptionPane;

    class converter{

        public static void main(String[]args) throws Exception{

            String amount = JOptionPane.showInputDialog("Enter rupees");

            int asd = Integer.parseInt(amount);

        

        float us_dollor = asd / 104f;

        float aus_dollor = asd / 78f;

        float riyal = asd / 28f;

        float deenar = asd / 358f;

            JOptionPane.showMessageDialog(null, "Pakistani Rupees" + asd + 

                        "\n In US Dollors: " + us_dollor + 

                        "\n Australian Dollors : " + aus_dollor +

                        "\n Saudi Riyal : " + riyal +

                        "\n Deenar : " + deenar );

        }

    }

Java Program

Marksheet Using GUI Based Input (SWING)

import javax.swing.JOptionPane;
    class SwingMarksheet{
        public static void main(String[]args) throws Exception{
            String a = JOptionPane.showInputDialog("Enter Java Marks");
            int java = Integer.parseInt(a);
            String s = JOptionPane.showInputDialog("Enter PHP Marks");
            int php = Integer.parseInt(s);
            String d = JOptionPane.showInputDialog("Enter VB Marks");
            int vb = Integer.parseInt(d);
            String f = JOptionPane.showInputDialog("Enter C++ Marks");
            int cpp = Integer.parseInt(f);
            String g = JOptionPane.showInputDialog("Enter Assembly Marks");
            int assembly = Integer.parseInt(g);
           
            int total = 500;
            int obtained = java + php + vb + cpp + assembly;
            int percentage = obtained*100/total;
        JOptionPane.showMessageDialog(null, " \n Obtained Marks Are : " + obtained
                                      + "\n Total Marks Are : " + total
                                      + " \n Percentage is : " + percentage + "%" );
           
        }
    }

Java Program

Operator Example Using GUI (Swing) Input And CLI (io) Input Both

import javax.swing.JOptionPane;
    class SwingAddition{
        public static void main(String[]args) throws Exception{
            String a = JOptionPane.showInputDialog("Enter Num1");
                int x = Integer.parseInt(a);
            String s = JOptionPane.showInputDialog("Enter Num2");
                int y = Integer.parseInt(s);
                int add = x + y;
                int mul = x * y;
                int div = x / y;
                int sub = x - y;
                int rem = x % y;
           
            JOptionPane.showMessageDialog(null, "Sum is : " + add);
            System.out.print(" \n Sum is: " + add);
            JOptionPane.showMessageDialog(null, "Multiplication is : " + mul);
            System.out.print(" \n Multiplication is: " + mul);
            JOptionPane.showMessageDialog(null, "Division is : " + div);
            System.out.print(" \n Division is: " + div);
            JOptionPane.showMessageDialog(null, "Subtraction is : " + sub);
            System.out.print(" \n Subtraction is: " + sub);
            JOptionPane.showMessageDialog(null, "Reminder is : " + rem);
            System.out.print("  \n Reminder is: " + rem);
        }
    }

Java Program

Operator Example by Taking Input From User

import java.io.DataInputStream;

    class Operator{

        public static void main(String[]args) throws Exception{

            DataInputStream ob = new DataInputStream(System.in);

                System.out.print("Enter First Number ");

                    String a = ob.readLine();

                    int r = Integer.parseInt(a);

                System.out.print("Enter Second Number ");

                    String b = ob.readLine();

                    int s = Integer.parseInt(b);

                    int sum = r + s;

                    int min = r - s;

                    int mul = r * s;

                    int div = r / s;

                    int rem = r % s;

                System.out.print(" Sum is " + sum + " \n subtract is " + min + 

                                 " \n multiplication is " + mul + " \n division is " + div + 

                                 " \n reminder is " + rem);

        }

    }

                

Java Program

Java Marksheet Using DataInputStream Class

import java.io.DataInputStream;
    class Marksheet{
        public static void main(String[]args) throws Exception{
            DataInputStream ob = new DataInputStream(System.in);
                System.out.print("Enter Java Marks ");
                    String one = ob.readLine();
                    int java = Integer.parseInt(one);
                System.out.print("Enter PHP Marks ");
                    String second = ob.readLine();
                    int php = Integer.parseInt(second);
                System.out.print("Enter VB.Net Marks ");
                    String third = ob.readLine();
                    int vb = Integer.parseInt(third);
                System.out.print("Enter C++ Marks ");
                    String fourth = ob.readLine();
                    int cpp = Integer.parseInt(fourth);
                System.out.print("Enter Assemby Marks ");
                    String fifth = ob.readLine();
                    int assembly = Integer.parseInt(fifth);
                    int total = 500;
                    int obtained =  java + php + vb + cpp + assembly;
                    int percentage = obtained * 100 / total;
                System.out.print(" Total Marks Are : " + total + "\n Your Obtained Marks Are: " + obtained +
                                "\n Your Percentage is: " + percentage + "%");
        }
    }

Java Program

Addition of Numbers Using io.DataInputStream

import java.io.DataInputStream;

    class Addition{

        public static void main(String[]args) throws Exception{

            DataInputStream ob = new DataInputStream(System.in);

        /*        we created the object of DIS class 

        

        */

            System.out.print("Enter First Number");

                String s = ob.readLine();

                int a = Integer.parseInt(s);

            /** we cnvert the string value into integer and save into a variable **/

            System.out.print("Enter second Number");

                String d = ob.readLine();

                int b = Integer.parseInt(d);

                int sum = a+b;

            System.out.println("Addition: " + sum);

        }

    }

/* line 6 and 7 can be written as

int b = Integer.parseInt(ob.readLine());

Assignments

        Perform All Airthematic operators

    Marksheet:

    Subject1 Marks

    Subject2 Marks

    Subject2 Marks

    Subject2 Marks

    Subject2 Marks as inputs

    gives output as 

    Total Marks

    Obtain Marks

    Percentage

    */