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1. Write a program that does the following: - reads an unspecified number of integers - determines how many positive and negative values have been read - computes the total and average of the input values (not counting zeros). Your program ends with the input 0. Display the average as a floating-point number. If the entire input is 0, the program displays "No numbers are entered except 0". Here is a sample run: Enter integers ending with e: 1 2 -1 3 e The number of positives is 3 The number of negatives is 1 The total is 5 The average is 1.25 2. A pentagonal number is defined as n(3n-1)/2 for n= 1, 2, . . ., etc.. Therefore, the first few numbers are 1, 5, 12, 22, . . ..Write a method with the following header that returns a pentagonal number: public static int getPentagonalNumber(int n) For example, getPentagonalNumber(1) returns 1 and getPentagonalNumber(2) returns 5. Write a test program that uses this method to display the first 100 pentagonal numbers with 10 numbers on each line. Numbers are separated by exactly one space.

1. Write a program that does the following: - reads an unspecified number of integers - determines how many positive and negative values have been read - computes the total and average of the input values (not counting zeros). Your program ends with the input 0. Display the average as a floating-point number. If the entire input is 0, the program displays "No numbers are entered except 0". Here is a sample run: Enter integers ending with e: 1 2 -1 3 e The number of positives is 3 The number of negatives is 1 The total is 5 The average is 1.25 2. A pentagonal number is defined as n(3n-1)/2 for n= 1, 2, . . ., etc.. Therefore, the first few numbers are 1, 5, 12, 22, . . ..Write a method with the following header that returns a pentagonal number: public static int getPentagonalNumber(int n) For example, getPentagonalNumber(1) returns 1 and getPentagonalNumber(2) returns 5. Write a test program that uses this method to display the first 100 pentagonal numbers with 10 numbers on each line. Numbers are separated by exactly one space.

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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1. Write a program that does the following: - reads an unspecified number of integers - determines how many positive and negative values have been read - computes the total and average of the input values (not counting zeros). Your program ends with the input 0. Display the average as a floating-point number. If the entire input is 0, the program displays "No numbers are entered except 0". Here is a sample run: Enter integers ending with e: 1 2 -1 3 e The number of positives is 3 The number of negatives is 1 The total is 5 The average is 1.25 2. A pentagonal number is defined as n(3n-1)/2 for n= 1, 2, ..., etc.. Therefore, the first few numbers are 1, 5, 12, 22, .... Write a method with the following header that returns a pentagonal number: public static int getPentagonalNumber(int n) For example, getPentagonalNumber(1) returns 1 and getPentagonalNumber(2) returns 5. Write a test program that uses this method to display the first 100 pentagonal numbers with 10 numbers on each line. Numbers are separated by exactly one space.
Transcribed Image Text:1. Write a program that does the following: - reads an unspecified number of integers - determines how many positive and negative values have been read - computes the total and average of the input values (not counting zeros). Your program ends with the input 0. Display the average as a floating-point number. If the entire input is 0, the program displays "No numbers are entered except 0". Here is a sample run: Enter integers ending with e: 1 2 -1 3 e The number of positives is 3 The number of negatives is 1 The total is 5 The average is 1.25 2. A pentagonal number is defined as n(3n-1)/2 for n= 1, 2, ..., etc.. Therefore, the first few numbers are 1, 5, 12, 22, .... Write a method with the following header that returns a pentagonal number: public static int getPentagonalNumber(int n) For example, getPentagonalNumber(1) returns 1 and getPentagonalNumber(2) returns 5. Write a test program that uses this method to display the first 100 pentagonal numbers with 10 numbers on each line. Numbers are separated by exactly one space.
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