Question: Help with pseudocode only!!!! Write algorithms and programs to create a class PrimeSequence that ……

Help with pseudocode only!!!!

Write algorithms and programs to create a class PrimeSequence that implements the Sequence interface – refer to P10.2 on page 508 in the text – and the next() method. This problem utilizes the Worked Example 10.1 (page 473 in the text – go to wiley.com/go/javaexamples for sample downloads). Provide a Demo program that will produce an arbitrary sequence of n prime numbers in table format and will perform an analysis of those n prime numbers.

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Output: Output will provide a table of n prime numbers. The table will be as close to b“square” as possible – i.e. same number of rows and columns – with at most 10 entries per row. All entries will be right-aligned. Additionally, output will include a “histogram” of the occurrences of the last digit [0-9] of each prime number. The histogram will be horizontal (not vertical) and will be scaled (as a percentage %), with a legend at the bottom to explain the scale and display the total count of primes. Each digit’s entry (a sequence of *’s) must fit on a single row, and it must be properly labeled (actual count, scaled %). Scale will need to be flexible. Round up fraction percentages. All output should be handled by the Demo class. A sample output is provided below.

Input: Input will be provided on the command-line (see 11.3, pages 527-529 for details). Two input constants will be placed on the command-line upon execution. For example: java SequenceDemo 2 25 ; where the prime sequence will start with the next prime after the first number (3), and the second number (n) is the number of prime numbers to be sequenced (25). Both numbers will be integers and both numbers must be 1 or greater. Command-line input will need to be validated. If either input fails validation, your program should display why the input failed, and it should gracefully terminate, using System.exit(1). Instructions for compilation/execution should include command-line input details and requirements, and document that the Sequence interface needs to be in the same directory with your source code.

Expert Answer

answers

public class PrimeSequenceTester {

public static void main(String[] args) {

final int TARGET_NUMBER_OF_PRIMES = 100;
Sequence primes = new PrimeSequence();

System.out.println(“The first ” + TARGET_NUMBER_OF_PRIMES + ” prime numbers are as follows:n”);

for (int index = 1; index <= TARGET_NUMBER_OF_PRIMES; index++) {
// formats the output with each element in a field of length 4
System.out.printf(“%4d”, primes.next());
if (index % 10 == 0) {
System.out.println();
}
}

System.out.println();
}

}
—————————————————————————————-
public class PrimeSequence implements Sequence {

private int number = 1;

// Cycles through each number testing their prime status
@Override
public int next() {
boolean primeFlag = false;
while (!primeFlag) {
number++;
primeFlag = isPrime(number);
}
return number;
}

// Determines if a number is prime
public boolean isPrime(int number) {
boolean factorFlag = false;
int divisor = 2;
while (!factorFlag && divisor <= Math.sqrt(number)) {
if (number % divisor == 0) {
factorFlag = true;
}
divisor++;
}
return !factorFlag;
}

}
————————————————————————————
public interface Sequence {

// Finds the next element in a sequence.

int next();
}
$PrimeSequence ldeaProjects/PrimeSequence src/PrimeSequenceTester java [PrimeSequence Project 1public class PrimeSequenceTester idea out public static void main(Stringll args) t final int TARGET_NUMBER_OF_PRIMES 188 PrimeSequence Sequence primes-new PrineSequenceC) System.out.println(The fist TARGET NUMBER OF_PRIMESprime numbers are as follows:n); for (int index=1; index<= TARGET NUMBER-OF-PRIMES; index++) { C PrimeSequenceTester Sequence 18 // formats the output with each element in a field of length 4 Systen.out.printf(%4d, primes . next()); if ( index 10-_ 0) { External Libraries 12 13 14 15 16 17 18 19 20 21 System.out.println); System.out.println) PrimeSequenceTester Run Main 2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97 101 103 107 109 113 127 131 137 139 149 151 157 163 167 173 179 181 191 193 197 199 211 223 227 229 233 239 241 251 257 263 269 271 277 281 283 293 307 311 313 317 331 337 347 349 353 359 367 373 379 383 389 397 481 409 419 421 431 433 439 443 449 457 461 463 Ш 467 479 487 491 499 503 509 521 523 541 Process finished with exit code 19:6 LF# UTF-8$

Question: Help with pseudocode only!!!! Write algorithms and programs to create a class PrimeSequence that ……

Expert Answer

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