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Written in Java (Object Oriented). Must run in NetBeans. Method main() should: c

ID: 3743508 • Letter: W

Question

Written in Java (Object Oriented). Must run in NetBeans.

Method main() should:

        comparison();

        forLoop();

        whileSwitch();

Write method comparison() to do the following:

Return type of void

Declare as static

Empty parameter list

Instantiate and instance of class Scanner, pass as an argument to the constructor the value System.in

Declare two variables of primitive data type int representing two numbers

Using method System.out.println(), prompt the user to enter an integer

Store the value in one of the variables of primitive data type int by setting it equal to method nextInt() in class Scanner

Using method System.out.println(), prompt the user to enter a second integer

Store the value in the second variable of primitive data type int by setting it equal to method nextInt() in class Scanner

Equal

Not equal

Less than

Greater than

Less than or equal to

Greater than or equal to

Output to the console the results of each comparison

Write method forLoop() to do the following:

Return type of void

Declare as static

Empty parameter list

amount = 0;

principle;

rate;

time;

ci;

t = 1;  

Instantiate and instance of class Scanner, pass as an argument to the constructor the value System.in

Using method System.out.println(), prompt the user to enter the initial principle investment

Store the value in the variable principle by setting it equal to method nextDouble() in class Scanner

Using method System.out.println(), prompt the user to enter the interest rate

Store the value in the variable rate by setting it equal to method nextDouble() in class Scanner

Using method System.out.println(), prompt the user to enter the number of years of the investment

Store the value in the variable time by setting it equal to method nextDouble() in class Scanner

Update the value of variable rate by setting it equal to the calculation (1 + rate / 100) to generate a percentage value

Loop for the number of years stored in the variable time

Set variable t equal (t * rate)

Update variable amount setting it equal to the calculation (principle * t)

Output to the user the amount

Calculate the compounded interest, setting variable ci equal to the calculation (amount – principle)

Output to the user their compounded interest

Write method whileSwitch() to do the following:

Return type of void

Declare as static

Empty parameter list

day

rain

Output to the console “Sunday we got 1 inch of rain”

Update variable rain to equal (rain + 1)

Output to the console “Monday we got 2 inches of rain”

Update variable rain to equal (rain + 2)

Output to the console “Tuesday we got 3 inches of rain”

Update variable rain to equal (rain + 3)

Output to the console “Wednesday we got 4 inches of rain”

Update variable rain to equal (rain + 4)

Output to the console “Thursday we got 5 inches of rain”

Update variable rain to equal (rain + 5)

Output to the console “Friday we got 6 inches of rain”

Update variable rain to equal (rain + 6)

Output to the console “Saturday we got 7 inch of rain”

Update variable rain to equal (rain + 7)

Output to the console that the value is not valid

Increment the looping variable day by 1

Output to the console how much rain was received in the past week

Written in Java (Object Oriented). Must run in NetBeans.

Method main() should:

In the main method call the following methods:

        comparison();

        forLoop();

        whileSwitch();

Write method comparison() to do the following:

Return type of void

Declare as static

Empty parameter list

Instantiate and instance of class Scanner, pass as an argument to the constructor the value System.in

Declare two variables of primitive data type int representing two numbers

Using method System.out.println(), prompt the user to enter an integer

Store the value in one of the variables of primitive data type int by setting it equal to method nextInt() in class Scanner

Using method System.out.println(), prompt the user to enter a second integer

Store the value in the second variable of primitive data type int by setting it equal to method nextInt() in class Scanner

Using the comparison operators, determine if the two variables of primitive data type int are

Equal

Not equal

Less than

Greater than

Less than or equal to

Greater than or equal to

Output to the console the results of each comparison

Write method forLoop() to do the following:

Return type of void

Declare as static

Empty parameter list

Declare the following variables all of primitive data type double

amount = 0;

principle;

rate;

time;

ci;

t = 1;  

Instantiate and instance of class Scanner, pass as an argument to the constructor the value System.in

Using method System.out.println(), prompt the user to enter the initial principle investment

Store the value in the variable principle by setting it equal to method nextDouble() in class Scanner

Using method System.out.println(), prompt the user to enter the interest rate

Store the value in the variable rate by setting it equal to method nextDouble() in class Scanner

Using method System.out.println(), prompt the user to enter the number of years of the investment

Store the value in the variable time by setting it equal to method nextDouble() in class Scanner

Update the value of variable rate by setting it equal to the calculation (1 + rate / 100) to generate a percentage value

In a for loop

Loop for the number of years stored in the variable time

Set variable t equal (t * rate)

Update variable amount setting it equal to the calculation (principle * t)

Output to the user the amount

Calculate the compounded interest, setting variable ci equal to the calculation (amount – principle)

Output to the user their compounded interest

Write method whileSwitch() to do the following:

Return type of void

Declare as static

Empty parameter list

Declare the following variables all of primitive data type int

day

rain

In a while loop that loops for seven daysIn a switch that evaluates the variable dayIf case 0

Output to the console “Sunday we got 1 inch of rain”

Update variable rain to equal (rain + 1)

If case 1

Output to the console “Monday we got 2 inches of rain”

Update variable rain to equal (rain + 2)

If case 2

Output to the console “Tuesday we got 3 inches of rain”

Update variable rain to equal (rain + 3)

If case 3

Output to the console “Wednesday we got 4 inches of rain”

Update variable rain to equal (rain + 4)

If case 4

Output to the console “Thursday we got 5 inches of rain”

Update variable rain to equal (rain + 5)

If case 5

Output to the console “Friday we got 6 inches of rain”

Update variable rain to equal (rain + 6)

If case 6

Output to the console “Saturday we got 7 inch of rain”

Update variable rain to equal (rain + 7)

Default case

Output to the console that the value is not valid

Increment the looping variable day by 1

Output to the console how much rain was received in the past week

Explanation / Answer

import java.util.Scanner;

class Main {

public static void comparison()

{

int a, b;

Scanner sc = new Scanner(System.in);

System.out.print("Enter a number: ");

a = sc.nextInt();

System.out.print("Enter another number: ");

b = sc.nextInt();

System.out.println("Equal: " + (a == b));

System.out.println("Not equal: " + (a != b));

System.out.println("Less than: " + (a < b));

System.out.println("Greater than: " + (a > b));

System.out.println("Less than or equal to: " + (a <= b));

System.out.println("Greater than or equal to: " + (a >= b));

}

public static void forLoop()

{

double amount = 0, principle, rate, time, ci, t = 1;

Scanner sc = new Scanner(System.in);

System.out.print("Enter initial principle investment: ");

principle = sc.nextDouble();

System.out.print("Enter initial interest rate: ");

rate = sc.nextDouble();

System.out.print("Enter the number of years of investment: ");

time = sc.nextDouble();

rate = (1 + rate / 100.0);

for(int i=1; i<= time; i++)

{

t = t*rate;

}

amount = principle * t;

System.out.println("Amount = "+amount);

ci = amount - principle;

System.out.println("Compound Interest = "+ci);

}

public static void whileSwitch()

{

int day=0, rain=0;

while(day < 7)

{

switch(day)

{

case 0:

System.out.println("Sunday we got 1 inche of rain");

rain = rain + 1;

break;

case 1:

System.out.println("Monday we got 2 inches of rain");

rain = rain + 2;

break;

case 2:

System.out.println("Tuesday we got 3 inches of rain");

rain = rain + 3;

break;

case 3:

System.out.println("Wednesday we got 4 inches of rain");

rain = rain + 4;

break;

case 4:

System.out.println("Thursday we got 5 inches of rain");

rain = rain + 5;

break;

case 5:

System.out.println("Friday we got 6 inches of rain");

rain = rain + 6;

break;

case 6:

System.out.println("Saturday we got 7 inches of rain");

rain = rain + 7;

break;

default:

System.out.println("Not valid");

}

day++;

}

System.out.println("Total rains received in the past week are "+rain);

}

public static void main(String[] args) {

comparison();

forLoop();

whileSwitch();

}

}

/* SAMPLE OUTPUT

Enter a number: 5

Enter another number: 2

Equal: false

Not equal: true

Less than: false

Greater than: true

Less than or equal to: false

Greater than or equal to: true

Enter initial principle investment: 1000

Enter initial interest rate: 20

Enter the number of years of investment: 3

Amount = 1728.0

Compound Interest = 728.0

Sunday we got 1 inche of rain

Monday we got 2 inches of rain

Tuesday we got 3 inches of rain

Wednesday we got 4 inches of rain

Thursday we got 5 inches of rain

Friday we got 6 inches of rain

Saturday we got 7 inches of rain

Total rains received in the past week are 28

*/