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Operatory - Java basic

Konwersja typu zmiennej tzn casting - zawężający lub rozszerzający (int -> double)

Przykład:



// Object Type Casting

        double d = 13.4587d;
        int aInt =11;
        System.out.println(d);
        System.out.println(a+"\n");

        System.out.println("Object Type Casting\n");
        System.out.println((int)d);
        System.out.println((double)aInt);


Object Type Casting

13
11.0

Operatory skrócone:



 //Przykłady operatorów skróconych

        int aInt2=11;
        aInt2+=5;
        System.out.println(aInt2);
        aInt2-=5;
        System.out.println(aInt2);
        aInt2/=5;
        System.out.println(aInt2);
        aInt2*=5;
        System.out.println(aInt2);
        aInt2&=5;
        System.out.println(aInt2);


Inkrementacja i dekrymentacja


        // Inkrementacja
        int i=0;

        System.out.println(i++);
        System.out.println(i);
        System.out.println(++i);

        System.out.println("\n");

        // Dekrymentacja
        int j=0;
        System.out.println(j--);
        System.out.println(j);
        System.out.println(--j);

        int math = 15;
        double mathSqrt = Math.sqrt(math);
        System.out.println(mathSqrt);
        System.out.println(Math.sqrt(math));

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