Notes

/*
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*/
package laboratorium02;

/**
*
* @author student
*/
public class TypyDanych {

public static void typInteger()
{
System.out.println("Typ Integer");
//wersja typow prostych
int i0 = 11;
int i1 = 9;
int i2= i0+ i1;
System.out.println(i0 + " + " +i1 + " = " + i2);
//wersja obiektowa
Integer I0 = new Integer(11);
Integer I1 = new Integer(9);
Integer I2 = I0 + I1;
System.out.println(I0 + " + " + I1 + " = " + I2);

//dodatkowe mozliwosci wersji obiektowej

double x = I0.doubleValue();
System.out.println("x="+x);

//porownanie typow prostych
i0=123;
i1=123;

System.out.println("i0=" +i0+" il="+i1);
System.out.println("i0==i1 ");
if(i0==i1) System.out.println("Tak"); else System.out.println("NIE");

//porownanie typow obiektowych

I0 = new Integer(123);
I1 = new Integer(123);
I2 = I0;

System.out.println("I0="+I0+" I1="+I1+" I2="+I1);
System.out.println("I0=I1 ");
if(I0==I1) System.out.println("TAK"); else System.out.println("NIE");
System.out.println("I0=I2 ");
if(I0==I1) System.out.println("TAK"); else System.out.println("NIE");
System.out.println("I0.equals(I1) ");
if(I0.equals(I1)) System.out.println("TAK"); else System.out.println("NIE");
System.out.println("I0.equals(I1) ");
if(I0.equals(I2)) System.out.println("TAK"); else System.out.println("NIE");

//skladniki statyczne klasy integer

System.out.println("MIN=" +Integer.MIN_VALUE);
System.out.println("MAX=" +Integer.MAX_VALUE);
System.out.println("SIZE="+Integer.SIZE);

System.out.println("max: "+Integer.max(4, -6));
System.out.println("min: "+Integer.min(4, -6));

Integer I3 = Integer.decode("97");
System.out.println(i3+3);

int i3 = Integer.parseInt("-23");
System.out.println(i3+3);

public static void typString()
{
String tekst1 = "Ala ma";
String tekst2 = "kota, a kot to ";
String tekst3 = "*******";

//laczenie tekstow

String tekstCaly1 = tekst1+ " "+tekst2+tekst3;
String tekstCaly2 = tekst1.concat(" ").concat(tekst2).concat(tekst3);
System.out.println(tekstCaly1);
System.out.println(tekstCaly2);

//porownanie tekstow

if(tekst1.compareTo("Ala ma")==0) System.out.println("TAK");
else System.out.println("NIE");
if(tekst1.compareTo("ALA MA"))
}
}


}