App Test Java (Complex, Segitiga, Suhu)
Yang Pertama Kita
- Buat Class Complex
public class Complex {
private double real = 0;
private double imaginer = 0;
public Complex()
{
}
public Complex(double real, double imaginer)
{
this.real = real;
this.imaginer = imaginer;
}
public Complex(Complex other)
{
this.real = other.real;
this.imaginer = other.imaginer;
}
public void setReal(double real) {
this.real = real;
}
public void setImaginer(double imaginer) {
this.imaginer = imaginer;
}
public double getReal() {
return real;
}
public double getImaginer() {
return imaginer;
}
public void add(Complex other)
{
real = this.real + other.real;
imaginer = this.imaginer + other.imaginer;
}
public void sub(Complex other)
{
real = this.real - other.real;
imaginer = this.imaginer - other.imaginer;
}
public void mul(Complex other)
{
double Reall = ((this.real * other.real) -
(this.imaginer * other.imaginer));
double Imaginerr = ((this.real * other.imaginer) +
(this.imaginer * other.real));
real = Reall;
imaginer = Imaginerr;
}
public void div(Complex other)
{
double bagi = ( (other.real * other.real) +
(other.imaginer * other.imaginer) );
if(bagi == 0)
{
real = Double.POSITIVE_INFINITY;
imaginer = Double.POSITIVE_INFINITY;
}
else
{
double reall = ( (this.real * other.real) +
(this.imaginer * other.imaginer) ) /
bagi;
double imaginerr = ( (other.real * this.imaginer) -
(this.real * other.imaginer)) / bagi;
real = reall;
imaginer = imaginerr;
}
}
public int compareTo(Complex other)
{
double magnitude1 = Math.sqrt(this.real * this.real +
this.imaginer * this.imaginer);
double magnitude2 = Math.sqrt(other.real * other.real +
other.imaginer * other.imaginer);
if (magnitude1 == magnitude2)
{
return 0;
}
else if(magnitude1 > magnitude2)
{
return 1;
}
else
{
return -1;
}
}
- Buat Class Suhu
public class Suhu {
private double kelvin = 0.0;
public Suhu (){
}
public Suhu (double kel){
if (isValid(kel))
kelvin = kel;
}
private boolean isValid(double k){
if(k>=0)
return true;
else
return false;
}
public double getKelvin(){
return kelvin;
}
public void setKelvin(double k){
if (isValid(k))
kelvin = k;
}
public double getCelcius(){
double c = kelvin - 273.15;
return c;
}
public void setCelcius(double c){
if(isValid(c))
kelvin = c + 273.15;
}
public double getFahrenheit(){
double f = (kelvin * 9/5) - 459.67;
return f;
}
public void setFahrenheit(double f){
if (isValid(f))
kelvin = (f + 459.67)* 5/9;
}
public double getReamur(){
return (kelvin - 273.15) * 4/5;
}
public void setReamur(double r){
if (isValid(r))
kelvin = r * 5/4 + 273.15;
}
public String getInfo(){
String i;
double v = kelvin;
if (isValid(v))
i = "Suhu{kelvin=" + kelvin+ "}";
else
i = "Suhu{kelvin=" + kelvin+ "}";
return i;
}
- Buat Class Segitiga
public class Segitiga {
private double SisiA = 1.0;
private double SisiB = 1.0;
private double SisiC = 1.0;
public Segitiga()
{
}
public double getSisiA()
{
if (SisiA < 0 )
SisiA = 0;
else if(SisiA == 0 || SisiA == 3)
SisiA = 1.0;
return SisiA;
}
public double getSisiB()
{
if (SisiB < 0)
SisiB = 0;
else if(SisiB == 0 || SisiB == 3)
SisiB = 1.0;
return SisiB;
}
public double getSisiC()
{
if (SisiC < 0)
SisiC = 0;
else if(SisiC == 0 || SisiC == 3)
SisiC = 1.0;
return SisiC;
}
public Segitiga(double a, double b, double c)
{
if (isValid (a,b,c))
{
SisiA = a;
SisiB = b;
SisiC = c;
}
}
public void setSisiA(double a)
{
if(a < 0)
SisiA = 1.0;
else
SisiA = a;
}
public void setSisiB(double b)
{
if(b < 0)
SisiB = 1.0;
else
SisiB = b;
}
public void setSisiC(double c)
{
if(c < 0)
SisiC = 1.0;
else
SisiC = c;
}
public double getKeliling()
{
return (getSisiA() + getSisiB() + getSisiC());
}
public double getLuas()
{
double s = (0.5 * (SisiA + SisiB + SisiC));
return (Math.sqrt(s * (s - SisiA)*(s - SisiB)*(s - SisiC) ));
}
public String getInfo()
{
return "Segitiga{sisiA="+SisiA+", sisiB="+SisiB+", sisiC="+SisiC+"}";
}
public boolean isSamaSisi()
{
if (SisiA == SisiB && SisiA == SisiC ){
return true;
}
else{
return false;
}
}
public boolean isSamaKaki()
{
if( SisiA == SisiB || SisiA == SisiC || SisiB == SisiC )
{
return true;
}
else
return false;
}
private boolean isValid(double a, double b, double c)
{
boolean test1 = false;
boolean test2 = false;
if((a > 0) && (b > 0) && (c > 0)){
test1 = true;
}
else if (a < 0){
SisiB = b;
SisiC = c;
}
else if (b < 0){
SisiA = a;
SisiC = c;
}
else if(c < 0){
SisiA = a;
SisiB = b;
}
else
return test1 = false;
if (a > b && a > c && a < b +c)
test2 = true;
else if (b > a && b > c && b < a + c)
test2 = true;
else if (c > a && c > b && c < a + b)
test2 = true;
else if (a == b && a == c)
test2 = true;
else
test2 = false;
return test1 && test2;
}
public Segitiga(Segitiga other)
{
this(other.SisiA,other.SisiB,other.SisiC);
}
public boolean isKongruen(Segitiga other)
{
if ((this.SisiA == other.SisiA) &&
(this.SisiB == other.SisiB) &&
(this.SisiC == other.SisiC))
{
return true;
}
else if((this.SisiA == other.SisiC) &&
(this.SisiB == other.SisiA) &&
(this.SisiC == other.SisiB))
{
return true;
}
else if((this.SisiA == other.SisiC) &&
(this.SisiB == other.SisiB) &&
(this.SisiC == other.SisiA))
{
return true;
}
else if((this.SisiA == other.SisiA) &&
(this.SisiB == other.SisiC) &&
(this.SisiC == other.SisiB))
{
return true;
}
else{
return false;
}
}
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