assignment operator between classes java code example

Example: assignment operator between classes java

DayWeek dw = new DayWeek(5);
DayWeek dw2= null;
boolean b;

b = dw==dw2; // b = false
dw2 = dw; // dw2 and dw are equal
b = dw==dw2; // b = true

// references to different memory areas
DayWeek dw3 = new DayWeek(3);
DayWeek dw4 = new DayWeek(3);

if (dw3==dw4)
    b = true;
else
    b = false; // b = false