stuff
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src/main/java/tech/nevets/STNumericTypes.java
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47
src/main/java/tech/nevets/STNumericTypes.java
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package tech.nevets;
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import java.util.Scanner;
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public class STNumericTypes {
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static final int NUMBER = 2;
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static final int SCORE1 = 100;
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static final int SCORE2 = 95;
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static final int BOILING_IN_F = 212;
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public static void main(String[] args) {
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int fToC;
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double average;
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String output;
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Scanner sc = new Scanner(System.in);
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average = (double) (SCORE1 + SCORE2) / NUMBER;
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output = SCORE1 + " and " + SCORE2 + " have an average of " + average;
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System.out.println(output);
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fToC = Math.round((5 / 9F) * (BOILING_IN_F - 32));
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output = BOILING_IN_F + " in Fahrenheit is " + fToC + " in Celsius.";
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System.out.println(output);
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System.out.println();
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System.out.print("Enter First Name: ");
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String firstName = sc.nextLine();
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System.out.print("Enter Last Name: ");
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String lastName = sc.nextLine();
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System.out.println(firstName + " " + lastName);
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System.out.println();
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char firstInitial = firstName.charAt(0);
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System.out.println(firstInitial);
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String nameUpper = firstName.toUpperCase();
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System.out.println(nameUpper);
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System.out.println();
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System.out.println("Enter Sphere Diameter: ");
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int sphereDiameter = sc.nextInt();
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float sphereRadius = sphereDiameter / 2.0F;
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float sphereVolume = (float) ((4 / 3F) * Math.PI * (sphereRadius * sphereRadius * sphereRadius));
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System.out.println(sphereVolume);
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}
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}
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41
src/main/java/tech/nevets/STNumericTypesAlgorithm.txt
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41
src/main/java/tech/nevets/STNumericTypesAlgorithm.txt
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// This program will demonstrate the function of numeric operators
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// Class declarator
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// Main method head
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Create Scanner Object
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Create constant ints for NUMBER = 2, SCORE1 = 100, SCORE2 = 95, and BOILING_IN_F = 212
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Create int named fToC
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Create double named average
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Create String named output
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Set average to SCORE1 plus SCORE2, all divided by NUMBER
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Set output to SCORE1 appending " and " appending average appending " have an average of " appending average
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Print output to the console
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// This converts Fahrenheit to Celsius
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Set fToC to 5 divided by 9 all times (BOILING_IN_F minus 32)
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Set output to BOILING_IN_F appending " in Fahrenheit is " appending fToC appending " in Celsius."
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Print output to the console
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Print a newline to the console
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// Reads user's first and last name, then appends them
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Print "Enter First Name: " to console
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Use previously created scanner object to read the String, setting it to variable firstName
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Print "Enter Last Name: " to console
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Use scanner object to read the String, setting it to variable lastName
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Print firstName appending lastName to the console
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Print newline to the console
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Use the String method charAt passing in 0 to get the first char in the first name, setting that to a new char variable named firstInitial
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Print firstInitial to the console
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Use the String method toUpperCase, setting that to a new String variable named nameUpper
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Print nameUpper to the console
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Print newline to the console
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Print "Enter Sphere Diameter: " to console
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Use scanner object to get the entered int, setting it to a new variable named sphereDiameter
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Create new float named sphereRadius, setting it to shpereDiameter divided by 2.0F
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Create a new float named sphereVolume, setting it to (4 / 3F) * Math.PI * (sphereRadius * sphereRadius * sphereRadius)
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Print sphereVolume to the console
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@ -1,5 +1,9 @@
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package tech.nevets;
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/**
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* @author Steven Tracey
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*/
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public class STWelcome {
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public static void main(String[] args) {
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System.out.println("Welcome to Java Programming.");
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@ -7,8 +11,8 @@ public class STWelcome {
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System.out.println("will be awesome!");
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System.out.println("I promise not to cheat in this class");
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System.out.println("If caught, I will be withdrawn with an F grade");
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System.out.println("Como estas hoy");
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System.out.println("J'espere que tu aimes ce cours");
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System.out.println("Byona gironata");
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System.out.println("Como estas hoy"); // Lang: Spanish
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System.out.println("J'espere que tu aimes ce cours"); // Lang: French
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System.out.println("Byona gironata"); // Lang: Italian
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}
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}
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12
src/main/java/tech/nevets/Test.java
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12
src/main/java/tech/nevets/Test.java
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package tech.nevets;
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public class Test {
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public static void main(String[] args) {
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int i = 5;
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System.out.println("i is 5, next int is prefixed");
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System.out.println(++i);
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i = 5;
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System.out.println("i is 5, next int is postfixed");
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System.out.println(i++);
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}
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}
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