Selasa, 17 Maret 2015
MODUL 1 : CLASS
|
|
NAME
|
RAHMATUL MAHDALINA
|
STUDENT NUMBER
|
L200134004
|
CLASS
|
X
|
EXERCISE
|
A. Objective
To Understand what is
class and make student can create class it self.
B. Basic
Teory
Class is blueprint from
object. Some object can created from project that called class. Basic on this
definition, then a sufficient class made just one part of the
class and can be created / unloaded several objects (tens or even hundreds)
that have the same properties
C. Tools
and Materials
·
Laptop
·
Software NetBeans IDE 8.0.2
·
Java Development Kit
(JDK) 1.8
D. Work
Step
This is some
implementation of bicycle class :
public class bicycle {
int cadence;
int speed;
int gear;
void changeCadence (int newValue){
cadence = newValue;
}
void changeGear (int newValue){
gear = newValue;
}
void speedUp (int increment){
speed = speed+increment;
}
void applyBreak (int decrement){
speed = speed-decrement;
}
void printStates(){
System.out.println("Speed = "+speed+", "+
"Gear = "+gear+", "+"Cadence = "+cadence);
}
}
Class Bicycle abovedo
nothave amainfunction(mainmethod)becausethisclassis not anapplication
programbut merelya blueprint tocreate.Torunan
application program, it mustbe givenaclassthathasaprimaryfunction.
public class BicycleDemo {
public static void main(String []args){
bicycle bike1 = new bicycle();
bicycle bike2 = new bicycle();
bike1.changeCadence(50);
bike1.speedUp(10);
bike1.changeGear(2);
bike1.printStates();
bike2.changeCadence(50);
bike2.speedUp(10);
bike2.changeGear(2);
bike2.changeCadence(40);
bike2.speedUp(10);
bike2.changeGear(3);
bike2.printStates();
}
}
A. Analysis
To make class we must
have blueprint and main method to run some java program.
B. Assignment
1. Createaclassthatcan present thepropertiesof the
objectcat. Thisobjecthasthe form{umur,
warnabulu}andfunction ofthe form{meow,
ulang tahun}.
Code
:
int umur;
String warnabulu;
void changeUmur (int newValue){
umur = newValue;
}
void changeWarnabulu (String color){
warnabulu = color;
}
void printStates(){
System.out.println("Kucingku yang berwarna "+warnabulu+" "+"berumur "+umur+" "+"tahun,");
}
}
public class kucingku {
public static void main(String[]args){
kucing pretty = new kucing ();
kucing togo = new kucing ();
pretty.changeUmur (2);
pretty.changeWarnabulu("Putih");
pretty.printStates();
togo.changeUmur (3);
togo.changeWarnabulu("Hitam");
togo.printStates();
}
}
2. One of the application
PBO isa verycommonform offinancial applications. Bank Account
isone of the thingsthatcanbe usedasan objectinthe PBO.
i.
Createaclassthatcanpresenttheaccountobject.
variablesofthisobjectis {saldo, no rek, nama} and function ofthe form {cek
saldo, menabung, menarik, and transfer}.
ii.
Create a class that has a main
function that is used to demonstrate the making of the object.
Code :
public class Bank {
int saldo;
int noRek;
String nama;
void norek(int newValue){
noRek = newValue;
}
void nama(String newName){
nama = newName;
}
void cekSaldo(int newValue){
saldo = newValue;
}
void menabung(int increment){
saldo = saldo+increment;
}
void menarik(int decrement){
saldo = saldo-decrement;
}
void transfer(int transfer){
saldo = saldo-transfer;
}
void printStates(){
System.out.println("Saldo Terakhir Nomor Rekening "+noRek+" atas nama "+nama+
" adalah sebesar "+saldo+" rupiah.");
}
public static void main(String []args){
Bank person1 = new Bank();
person1.cekSaldo(1000);
person1.nama("Mahda");
person1.norek(260894);
person1.menabung(20000);
person1.menarik(3000);
person1.transfer(4000);
person1.printStates();
}
}
Homework :
1.
CreateaclassKalimat
is an application programtocount the number oflettersofasentenceand
alsocanconvertthe sentenceintoasentencewitha capital letter.
Code :
public class kalimat {
String x;
void changeword (String newword){
x = newword;
System.out.println("Please write a sentence: \n"+x);
}
void counting (){
System.out.println("The amount of characters are = "+x.length());
}
void enlarge (){
System.out.println(x.toUpperCase());
}
}
public class demokalimat {
public static void main(String []args){
kalimat kalimat1 = new kalimat();
kalimat1.changeword("Teknik Informatika UMS");
kalimat1.counting();
kalimat1.enlarge();
}
}
