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Patryk Czarnik
jvstd1
Commits
93a3da41
Commit
93a3da41
authored
Oct 16, 2024
by
Patryk Czarnik
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rekordy - początek
parent
a10068e2
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-0
Rekord.java
src/main/java/sprzedaz/Rekord.java
+18
-0
TestRekordu.java
src/main/java/sprzedaz/TestRekordu.java
+24
-0
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src/main/java/sprzedaz/Rekord.java
0 → 100644
View file @
93a3da41
package
sprzedaz
;
import
java.math.BigDecimal
;
import
java.time.LocalDate
;
public
record
Rekord
(
LocalDate
data
,
String
miasto
,
String
sklep
,
String
kategoria
,
String
towar
,
BigDecimal
cena
,
int
sztuk
)
{
public
BigDecimal
wartosc
()
{
return
cena
.
multiply
(
BigDecimal
.
valueOf
(
sztuk
));
}
}
src/main/java/sprzedaz/TestRekordu.java
0 → 100644
View file @
93a3da41
package
sprzedaz
;
import
java.math.BigDecimal
;
import
java.time.LocalDate
;
public
class
TestRekordu
{
public
static
void
main
(
String
[]
args
)
{
BigDecimal
cenaMleka
=
new
BigDecimal
(
"2.90"
);
Rekord
r1
=
new
Rekord
(
LocalDate
.
of
(
2001
,
2
,
3
),
"Warszawa"
,
"Biedronka"
,
"nabiał"
,
"mleko"
,
cenaMleka
,
6
);
Rekord
r2
=
new
Rekord
(
LocalDate
.
of
(
2001
,
2
,
3
),
"Warszawa"
,
"Biedronka"
,
"nabiał"
,
"mleko"
,
cenaMleka
,
6
);
System
.
out
.
println
(
r1
);
// getter, ale bez słowa get:
System
.
out
.
println
(
r1
.
miasto
());
System
.
out
.
println
(
"cena: "
+
r1
.
cena
()
+
" l.sztuk: "
+
r1
.
sztuk
()
+
" , wartość: "
+
r1
.
wartosc
());
System
.
out
.
println
(
r1
==
r2
);
System
.
out
.
println
(
r1
.
equals
(
r2
));
// nie ten sam obiekt, ale zawartości są równe
// rekordy są niemutowalne; nie ma "setterów"
}
}
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