could you please tell me
for what
javac, javax,swing,awt.*;
are using.
what is the meaning and differences.
and also
there are 4 access modifiers in java.
public, private, protected, default.
what is the meaning of these 4 access modifiers and
difference.
public is the access modifier
void means return data type
disp() means function name
what mean by static
Answer / nageswararao
javac is an copiler it compiles the actual .java file into
byte code formate.
javax.swing,awt those are packages the basic difference is
awt using system graphical user interface but swing use it's
won graphical user interface.
public means u can access the anywhere outside the class also.
private mean u ca access the variable and methods inside the
class only.
protect variable can access sub class also but not other
than sub class.
static means it maintain one copy for all.that means any
object for particular class static variable will one to
all object of that class.
Regards,
NageswaraRao.
| Is This Answer Correct ? | 4 Yes | 0 No |
i am making a purchase sheet in html ,it contain names of product(by selecting checkboxes),quantity(textbox) and price(checbox), by using java script i am restricting the user to prevent them to enter the wrong data ,so i made the servlet were i am only able to prevent them to enter the page in empty field , so my doubt is how do you prevent them how to enter non numerical data in quantity field
how to create an anonymous function
validation code / function to allow only Letters in a text box
write a program segment that will ask the user if he wants to computer the perimeter of the area of the triangle. if the perimeter is wanted, ask the measure of the three sides and compute for the perimeter. if the area is wanted, ask for the measures of the base and height and compute for the area. display the computed value
code to get the coordinates of a Click Event
function to combine two or more arrays
how to determine which Mouse Button was pressed
code to positioning of window in certain dimensions
Reading which Non-Character Key was pressed
how to transform XML Data into HTML
code to detect availability of cookies
how to pass data between pages using URLs