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In the cases of int, byte, long, short (In Java) Can you give the heirachy in ascending order?

nadya68 [22]

Answer:

Byte Short Int Long

Explanation:

Byte's 8 bit, short's 16, int's 32, and long's 65.

4 0

3 years ago

Write a method so that the main() code below can be replaced by the simpler code that calls method mphAndMinutesToMiles(). Origi

defon

ANSWER

The JAVA program after simplification is as below.

import java.util.Scanner;

public class CalcMiles {

// variables declaration

static double milesPerHour;

static double minutesTraveled;

static double hoursTraveled;

static double milesTraveled;

// method declared static

public static void mphAndMinutesToMiles(double speed, double mins)

{

// computations to calculate distance travelled

hoursTraveled = mins / 60.0;

milesTraveled = hoursTraveled * speed;

// result displayed on the screen

System.out.println("Miles: " + milesTraveled);

}

// Scanner object created inside main()

// user input taken inside main()

public static void main(String [] args)

{

Scanner scnr = new Scanner(System.in);

System.out.println("Enter miles travelled per hour ");

milesPerHour = scnr.nextDouble();

System.out.println("Enter minutes required to travel ");

minutesTraveled = scnr.nextDouble();

mphAndMinutesToMiles(milesPerHour, minutesTraveled);

}

OUTPUT

Enter miles travelled per hour

2.3

Enter minutes required to travel

1234

Miles: 47.30333333333333

EXPLANATION

The program is simplified as explained below.

1. User input is taken using the object of Scanner class.

2. This object of Scanner class can only be created inside main() method hence, user input can only be taken inside main().

3. The code to calculate the result is separated in another method, mphAndMinutesToMiles(). This method is declared with return type void since no value is returned.

4. After user input is taken in main() for miles travelled per hour and minutes required to travel, these values are passed as parameters to the mphAndMinutesToMiles() method.

5. These parameters are used in calculation part. The total miles travelled in total hours (obtained from minutes), is calculated. The code to display the result is added to this method.

6. Inside the main method, only the code to create Scanner object, code to take user input for two variables and code to call the mphAndMinutesToMiles() is included.

7. The variables are declared as static and declared at class level.

8. No variable is declared inside any of the two methods.

5 0

3 years ago

Read 2 more answers

Web-based application software is software that ________.

d1i1m1o1n [39]

Web-based application - this is a special kind of applications that operate in the global Internet via HTTP. The user interacts with the program, usually carried out through the browser.

8 0

3 years ago

Import java.awt.GridLayout;

Vikki [24]

Answer:

public class ConversionCalculator extends JFrame {

private JLabel inch_Label, meter_Label, cm_Label, yard_Label;

private JButton clear, calculate, exit;

private JTextField inch_tf, cm_tf, meters_tf, yards_tf;

public ConversionCalculator()

{

exitButtonHandler exitB;

clearButtonHandler clearB;

calcButtonHandler calcB;

setTitle("Conversion Calculator");

setSize(600,200);

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

//The first layout we use will be 1 row with three columns

setLayout(new GridLayout(1,3));

//initialize all the components

inch_Label = new JLabel("Inches");

meter_Label = new JLabel("Meters");

cm_Label = new JLabel("Centimeters");

yard_Label = new JLabel("Yards");

clear = new JButton("Clear");

calculate = new JButton("Calculate");

exit = new JButton("Exit");

inch_tf = new JTextField("0.00");

cm_tf = new JTextField("0.00");

meters_tf = new JTextField("0.00");

yards_tf = new JTextField("0.00");

JPanel panel1 = new JPanel();

panel1.setLayout(new GridLayout(2,2));

JPanel panel2 = new JPanel();

panel2.setLayout(new GridLayout(2,2));

JPanel panel3 = new JPanel();

panel3.setLayout(new GridLayout(3,1));

panel1.add(cm_Label);

panel1.add(cm_tf);

panel1.add(meter_Label);

panel1.add(meters_tf);

panel2.add(inch_Label);

panel2.add(inch_tf);

panel2.add(yard_Label);

panel2.add(yards_tf);

panel3.add(clear);

panel3.add(calculate);

panel3.add(exit);

add(panel1);

add(panel2);

add(panel3);

exitB = new exitButtonHandler();

exit.addActionListener(exitB);

clearB = new clearButtonHandler();

clear.addActionListener(clearB);

calcB = new calcButtonHandler();

calculate.addActionListener(calcB);

setVisible(true);

}

//public static void main(String[] args)

// {

// new ConversionCalculator();

//}

private class exitButtonHandler implements ActionListener

{

public void actionPerformed(ActionEvent e)

{

//exits program

System.exit(0);

}

private class clearButtonHandler implements ActionListener

{

public void actionPerformed(ActionEvent e)

{

//clear button sets all text fields to 0

inch_tf.setText("0.00");

meters_tf.setText("0.00");

yards_tf.setText("0.00");

cm_tf.setText("0.00");

}

private class calcButtonHandler implements ActionListener

{

public void actionPerformed(ActionEvent e)

{

double inches, yards, meters, cms;

DecimalFormat df = new DecimalFormat("0.00");

//parse strings in textbox into doubles

inches = Double.parseDouble(inch_tf.getText());

yards = Double.parseDouble(yards_tf.getText());

meters = Double.parseDouble(meters_tf.getText());

cms = Double.parseDouble(cm_tf.getText());

//we check which value has been tampered with and base our conversion off this

//because of this it is important that the user clears, or else it will do inch conversion

if(inches != 0.00)

{

cms = inches * 2.54;

meters = cms / 100;

yards = inches / 36;

cm_tf.setText(df.format(cms));

meters_tf.setText(df.format(meters));

yards_tf.setText(df.format(yards));

}

else if(yards != 0.00)

{

inches = yards / 36;

cms = inches * 2.54;

meters = cms / 100;

cm_tf.setText(df.format(cms));

meters_tf.setText(df.format(meters));

inch_tf.setText(df.format(inches));

}

else if(meters != 0.00)

{

cms = meters * 100;

inches = cms / 2.54;

yards = inches / 36;

cm_tf.setText(df.format(cms));

inch_tf.setText(df.format(inches));

yards_tf.setText(df.format(yards));

}

else if(cms != 0.00)

{

inches = cms / 2.54;

yards = inches / 36;

meters = cms / 100;

meters_tf.setText(df.format(meters));

inch_tf.setText(df.format(inches));

yards_tf.setText(df.format(yards));

}

Explanation:

Inside the action performed method, pass the strings in text box.
check if the value has been modified then do the relevant conversions inside the conditional statement.
When the user clears, it will not do to the inch conversion.

8 0

3 years ago

Does C supports STRINGS as a data type?

Nat2105 [25]

Answer:

C language does not support strings as a data type. A string is actually one-dimensional array of characters in C language. These are often used to create meaningful and readable programs.

Explanation:

6 0

2 years ago