Hi Friend,

Try the following code:

1)

import java.util.*;
class FindDifference 
{
    public static void main(String[] args) 
    {
        int sum=0,sum1=0,sum2=0;
        Scanner input=new Scanner(System.in);
        System.out.println("Enter value of n: ");
        int n=input.nextInt();
        for(int i=1;i<=n;i++){
            int sq=i*i;
            sum1+=sq;
        }
        //System.out.println(sum1);
        for(int i=1;i<=n;i++){
            sum+=i;
        }
        sum2=sum*sum;
        //System.out.println(sum2);
        int diff=0;
        if(sum1>sum2){
        diff=sum1-sum2;
        }
        else{
            diff=sum2-sum1;
        }
        System.out.println(diff);

    }
}

2)

   import java.util.*;
    import java.text.*;
    class  PerimeterOfSquare{
        public static void main(String[] args) 
        {
             DecimalFormat df = new DecimalFormat("##.00");
             Scanner input=new Scanner(System.in);
             System.out.println("Enter Area of Square:");
             double area=input.nextDouble();
             double side=Math.sqrt(area);
             System.out.println("Side of Square is: "+df.format(side));
             double perimeter=4*side;
             System.out.println("Perimeter of Square is: "+df.format(perimeter));

        }
    }

3)

import java.util.*;
import java.text.*;

class CalculateCyliderVolume
{
    public static void main(String[] args) 
    {   
        DecimalFormat df = new DecimalFormat("##.00");
        double PI=3.14;
        Scanner input=new Scanner(System.in);
        System.out.print("Enter Radius: ");
        double r=input.nextDouble();

        System.out.print("Enter Height: ");
        double h=input.nextDouble();

        double volume=PI*r*r*h;
        System.out.println("Volume of Cylinder: "+df.format(volume));
        }
}

continue..

4)

import java.util.*;
import java.text.*;
public class CalculateNetPay
{
    public static void main(String[]args){
    double taxRate=0.15;
    double hourlyRate=12;
    DecimalFormat df=new DecimalFormat("$##.00");
    Scanner input=new Scanner(System.in);
    System.out.print("Enter Number of Hours Worked: ");
    double hrs=input.nextDouble();
    double gp=hrs*hourlyRate;
    double tax=gp*taxRate;
    double netpay=gp-tax;
    System.out.println("Net Pay is: "+df.format(netpay));
    }
}

5)

import java.util.*;
import java.text.*;
class  CalculateTotalProfit{
    public static void main(String[] args) 
    {
        DecimalFormat df=new DecimalFormat("$##.00");
        double theaterCost=20;
        Scanner input=new Scanner(System.in);
        System.out.println("Enter Number of Customers: ");
        double cus=input.nextDouble();
        double earnFromTickets=5*cus;
        double attendeesCost=cus*0.50;
        double cost=attendeesCost+theaterCost;
        double profit=earnFromTickets-cost;
        System.out.println("Total Profit: "+df.format(profit));
    }
}

6)

import java.util.*;
import java.text.*;
class CalculateCylinderArea 
{
    public static void main(String[] args) 
    {
        DecimalFormat df = new DecimalFormat("##.00");
        double pi=3.14;
        Scanner input=new Scanner(System.in);
        System.out.print("Enter Radius: ");
        double r=input.nextDouble();

        System.out.print("Enter Height: ");
        double h=input.nextDouble();

        double v1=2*pi*r*r;
        double v2=2*pi*r*h;

        double surfaceArea=v1+v2;
        System.out.println("Surface Area of Cylinder: "+df.format(surfaceArea));
       }
}

Thanks

Hi Friend,

Try the following code:

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
class TotalInterest extends JFrame{
        TotalInterest(){
        JLabel lab1=new JLabel("Principal");
        final JTextField text1=new JTextField(20);

        JLabel lab2=new JLabel("Rate of Interest");
        final JTextField text2= new JTextField(20);

        JLabel lab3=new JLabel("Number of Months");
        final JTextField text3=new JTextField(20);

        JButton b=new JButton("Get");
        b.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent e){
            double p=Double.parseDouble(text1.getText());
            double r=Double.parseDouble(text2.getText())/100;
            double t=Double.parseDouble(text3.getText())/12;

            double interest=p*r*t;
            JOptionPane.showMessageDialog(null, "Total Interest is: "+interest);
            }
        });
           setLayout(null);
           lab1.setBounds(10,10,100,20);
           text1.setBounds(150,10,200,20);
           lab2.setBounds(10,40,100,20);
           text2.setBounds(150,40,200,20);
           lab3.setBounds(10,70,120,20);
           text3.setBounds(150,70,200,20);
           b.setBounds(150,110,70,20);
           add(lab1);
           add(text1);
           add(lab2);
           add(text2);
           add(lab3);
           add(text3);
           add(b);
           setVisible(true);
           setSize(400,200);
        }
    public static void main(String[] args){
    new TotalInterest();
        }
}

Thanks

this is not fair... this is your 1st assignment of TCS and u r searching answeres here n there...this will not help u... it's very basic assignment and try urself... its not compulsory to submit assignment... if u'll not learn this u'll really face the big problems.

Now its ur choice what do u want... getting some help n searching for all solutions r 2 diff things... so study... dont waste ur time..