Create a java program where you try to declare at least three variables with different data types. Assign the variables to optional values and print them using System.out.println or System.out.print in any way. Name the class Variables. Compare the written java program with the following code. public class NickName { // Main metod public static void main(String[] args) { // Declares four variables (three int and one double) int games; int goals; int shots; double shootingPercentage; // Assigns the variables different values games = 708; goals = 249; shots = 1693; shootingPercentage = 14.7; // Three different ways to print on the screen // 1. Divided into different combinations of print and println // where print does not make a line break, which println does. System.out.print("Peter \"Foppa\" Forsberg did play "); System.out.print(games); System.out.println(" matches in NHL."); // New row with println System.out.print("There he shot totally "); System.out.print(shots); System.out.print(" shoots of which"); System.out.print(goals); System.out.print(" went into goal. \ n"); // Wrap with \ n System.out.print("This he gives a shot percentage of "); System.out.print(shootingPercentage); System.out.println("%"); // 2. Uses + to perform "string addition" System.out.println(); // empty line System.out.println("Peter \"Foppa\" Forsberg did play " + games + " matches in NHL."); System.out.println("There he shot totally " + shots + " shoots of which " + goals + " went into goal."); System.out.println("This gives him a shot percentage of "+ shootingPercentage +"% "); // 3. Uses the format method System.out.println(); // empty line System.out.format("Peter \"Foppa\" Forsberg did play %d matches in NHL.%n", games); System.out.format("There he shot totally %d shoots of which %d went into goal.%n", shots, goals); System.out.format("This gives him a shot percentage of %3.1f%%%n", shootingPercentage); // In the last System.out.format,% 3.1f means that a float (double or float) should be printed // with a total of 3 value digits, of which 2 must belong to the decimal part. // Since% is used in format to specify that a value should be printed, we need to type %% for // that the character% itself should be printed. //% n means new line. } }

Create a java program where you try to declare at least three variables with different data types. Assign the variables to optional values and print them using System.out.println or System.out.print in any way. Name the class Variables. Compare the written java program with the following code. public class NickName { // Main metod public static void main(String[] args) { // Declares four variables (three int and one double) int games; int goals; int shots; double shootingPercentage; // Assigns the variables different values games = 708; goals = 249; shots = 1693; shootingPercentage = 14.7; // Three different ways to print on the screen // 1. Divided into different combinations of print and println // where print does not make a line break, which println does. System.out.print("Peter \"Foppa\" Forsberg did play "); System.out.print(games); System.out.println(" matches in NHL."); // New row with println System.out.print("There he shot totally "); System.out.print(shots); System.out.print(" shoots of which"); System.out.print(goals); System.out.print(" went into goal. \ n"); // Wrap with \ n System.out.print("This he gives a shot percentage of "); System.out.print(shootingPercentage); System.out.println("%"); // 2. Uses + to perform "string addition" System.out.println(); // empty line System.out.println("Peter \"Foppa\" Forsberg did play " + games + " matches in NHL."); System.out.println("There he shot totally " + shots + " shoots of which " + goals + " went into goal."); System.out.println("This gives him a shot percentage of "+ shootingPercentage +"% "); // 3. Uses the format method System.out.println(); // empty line System.out.format("Peter \"Foppa\" Forsberg did play %d matches in NHL.%n", games); System.out.format("There he shot totally %d shoots of which %d went into goal.%n", shots, goals); System.out.format("This gives him a shot percentage of %3.1f%%%n", shootingPercentage); // In the last System.out.format,% 3.1f means that a float (double or float) should be printed // with a total of 3 value digits, of which 2 must belong to the decimal part. // Since% is used in format to specify that a value should be printed, we need to type %% for // that the character% itself should be printed. //% n means new line. } }

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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Question

Compare the written java program with the following code.

public class NickName {

// Main metod

public static void main(String[] args) {

// Declares four variables (three int and one double)

int games;

int goals;

int shots;

double shootingPercentage;

// Assigns the variables different values

games = 708;

goals = 249;

shots = 1693;

shootingPercentage = 14.7;

// Three different ways to print on the screen

// 1. Divided into different combinations of print and println
// where print does not make a line break, which println does.

System.out.print("Peter \"Foppa\" Forsberg did play ");

System.out.print(games);

System.out.println(" matches in NHL."); // New row with println

System.out.print("There he shot totally ");

System.out.print(shots);

System.out.print(" shoots of which");

System.out.print(goals);

System.out.print(" went into goal. \ n"); // Wrap with \ n

System.out.print("This he gives a shot percentage of ");

System.out.print(shootingPercentage);

System.out.println("%");

// 2. Uses + to perform "string addition"

System.out.println(); // empty line

System.out.println("Peter \"Foppa\" Forsberg did play " + games + " matches in NHL.");

System.out.println("There he shot totally " + shots + " shoots of which " + goals + " went into goal.");

System.out.println("This gives him a shot percentage of "+ shootingPercentage +"% ");

// 3. Uses the format method

System.out.println(); // empty line

System.out.format("Peter \"Foppa\" Forsberg did play %d matches in NHL.%n", games);

System.out.format("There he shot totally %d shoots of which %d went into goal.%n", shots, goals);

System.out.format("This gives him a shot percentage of %3.1f%%%n", shootingPercentage);

// In the last System.out.format,% 3.1f means that a float (double or float) should be printed
// with a total of 3 value digits, of which 2 must belong to the decimal part.
// Since% is used in format to specify that a value should be printed, we need to type %% for
// that the character% itself should be printed.
//% n means new line.

}

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