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format week 1 code
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‎.idea/misc.xml‎

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‎.idea/modules.xml‎

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‎JavaCode2018.iml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<module type="JAVA_MODULE" version="4">
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<component name="NewModuleRootManager" inherit-compiler-output="true">
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<exclude-output />
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<content url="file://$MODULE_DIR$">
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<sourceFolder url="file://$MODULE_DIR$" isTestSource="false" />
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</content>
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<orderEntry type="inheritedJdk" />
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<orderEntry type="sourceFolder" forTests="false" />
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</component>
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</module>

‎Week1.java‎

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public class Week1 { //declaration of class
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public static void main(String[] args) { //Main Method: Operates code
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//SYNTAX
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//Declaring Variables
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double test = 4.0;
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//type name = value;
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final double pi = 3.14;
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//final signifies that you cannot change it later in the code
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//Printing
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System.out.print("Hello");
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//Prints Hello
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System.out.println("Hello");//(More useful)
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//Prints Hello and then creates a new line beneath it
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System.out.println(1);
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//number values do not have to be in quotations.
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//VARIABLE TYPES
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//Double variables: Can hold large decimal values
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double alpha = 1.0;
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double beta = 2.0;
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System.out.println(alpha + beta);// would output 3.0
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//Integer Variables: can hold integer values
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int alpha2 = 1;
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int beta2 = 2;
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System.out.println(alpha2 + beta2);// would output 3
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//String Variable: Can hold multiple characters
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String delta = "Hello";
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System.out.println(delta);//would output Hello
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//Char Variable: Can hold one character
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char letter = 'a';
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//OPERATORS
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double a = beta + alpha;//Addition: a = 3.0
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double b = beta - alpha;//Subtraction: b = 1.0
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double c = beta * alpha;//Multiplication: c = 2.0
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double d = alpha/beta;//Division: d = 0.5
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double f = beta%alpha;//Modulus:(provides remainder) f = 0.0
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double g = alpha++;//Increment:(adds 1) g = 2.0;
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double h = alpha--;//Decrement:(subtracts 1) h = 0.0;
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//CASTING
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double decimal= 1.71;
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//int integer = casting;
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//will not work because integers cannot hold decimal values.
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//Instead you should cast the double as an int.
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int integer =(int) decimal;
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// changes the double value into an int by cutting off decimals NOT ROUNDING
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double fraction = 1/2;//fraction will = 0.0
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//while 1/2 = 0.5 in real life, when two ints are divided in java, the result is also an int.
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//This means the resulting 0.5 would be shortened to 0
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//to fix this either the numerator or denominator must be made a double
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fraction = 1.0/2;
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//or the number must be cast as a double
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fraction = (double) 1/2;//fraction = 0.5
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//Extra notes
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/* typing // creates a comment that does not change the code
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* words like double, int, and String are key words that cannot to be used as variable names
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* the = sign sets a value to the variable, it does not signify that the values are equal
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* while doubles cannot go into ints, ints can always go into doubles
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* (ie. double a = 1 works, but int a = 1.2 does not)
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* there are many more variable types, but most are not useful for beginners right now
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*/
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//If you have any questions feel free to ask any of the teachers on classroom.
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//We would be more than happy to help.
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}
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public static void main(String[] args) { //Main Method: Operates code
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//SYNTAX
5+
6+
//Declaring Variables
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double test = 4.0;
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//type name = value;
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final double pi = 3.14;
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//final signifies that you cannot change it later in the code
11+
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//Printing
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System.out.print("Hello");
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//Prints Hello
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System.out.println("Hello");//(More useful)
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//Prints Hello and then creates a new line beneath it
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System.out.println(1);
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//number values do not have to be in quotations.
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//VARIABLE TYPES
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//Double variables: Can hold large decimal values
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double alpha = 1.0;
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double beta = 2.0;
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System.out.println(alpha + beta);// would output 3.0
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//Integer Variables: can hold integer values
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int alpha2 = 1;
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int beta2 = 2;
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System.out.println(alpha2 + beta2);// would output 3
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//String Variable: Can hold multiple characters
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String delta = "Hello";
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System.out.println(delta);//would output Hello
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//Char Variable: Can hold one character
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char letter = 'a';
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//OPERATORS
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double a = beta + alpha;//Addition: a = 3.0
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double b = beta - alpha;//Subtraction: b = 1.0
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double c = beta * alpha;//Multiplication: c = 2.0
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double d = alpha / beta;//Division: d = 0.5
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double f = beta % alpha;//Modulus:(provides remainder) f = 0.0
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double g = alpha++;//Increment:(adds 1) g = 2.0;
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double h = alpha--;//Decrement:(subtracts 1) h = 0.0;
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//CASTING
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double decimal = 1.71;
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//int integer = casting;
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//will not work because integers cannot hold decimal values.
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//Instead you should cast the double as an int.
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int integer = (int) decimal;
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// changes the double value into an int by cutting off decimals NOT ROUNDING
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58+
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double fraction = 1 / 2;//fraction will = 0.0
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//while 1/2 = 0.5 in real life, when two ints are divided in java, the result is also an int.
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//This means the resulting 0.5 would be shortened to 0
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//to fix this either the numerator or denominator must be made a double
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fraction = 1.0 / 2;
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//or the number must be cast as a double
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fraction = (double) 1 / 2;//fraction = 0.5
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//Extra notes
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/* typing // creates a comment that does not change the code
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* words like double, int, and String are key words that cannot to be used as variable names
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* the = sign sets a value to the variable, it does not signify that the values are equal
73+
* while doubles cannot go into ints, ints can always go into doubles
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* (ie. double a = 1 works, but int a = 1.2 does not)
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* there are many more variable types, but most are not useful for beginners right now
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*/
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//If you have any questions feel free to ask any of the teachers on classroom.
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//We would be more than happy to help.
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}
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}

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