java basic

int passengers;
passengers = 0;
passengers = passengers + 5;
passengers = passengers - 3;
passengers = passengers - 1 + 5;
System.out.println(passengers);

int stops;
int fare;
stops = 0;
fare = 0;
stops = stops + 1;
fare = fare + 5;
stops = stops + 1;
fare = fare + 3;
stops = stops + 1;
fare = fare + 7;
Systeml.out.println(stops);

String driver;
driver = "Hamish";
int letters = driver.length();
System.out.println(letters);

driver = driver.toUpperCase();
System.out.println(driver);

String driverFirstName;
driverFirstName = "Hamish";
String driverLastName;
driverLastName = "Blake";
String driverFullName = driverFirstName + " " + driverLastName;
System.out.println(driverFullName);
System.out.println("The bus made $"+fare+" after "+stops+"stops");

data type

int maxInt = 2147483647;
long muchMore = 2147483647*10000000;
double fraction = 99.275;
String fullText = "(b) WWII ended 1945";
char answer = 'b';
char three = '3';
boolean fact = true;

double current = 17;
double rate = 1.5;
double future = current * rate;
System.out.println(future);
int approx = (int) future;
System.out.println(approx);

casting

int x = 5;
int y = 2;
double div = x/y;
System.out.println(div);
double accurate = (double)x/y;
System.out.println(accurate);

average

double maths=97.5;
double english=98;
double science=83.5;
double drama=75;
double music=96;
double sum=maths+english+science+drama+music;
double average=sum/5;
System.out.println(average);