java-presentation

JAVA : JOPTIONPANE
JOptionPane.showMessageDialog:
Permit to create a windows where you can write
message which will be visible on screen.
a
JOptionPane.showInputDialog:
Permit to create a windows where you can insert an
element, for example , numbers end characters.
JOPTIONPANE.SHOWMESSAGEDIALOG
Str= "esempio di prova! "
JOptionPane.showMessageDialog(null,str)
JOPTIONPANE.SHOWINPUTDIALOG
String stin=JOptionPane.showInputDialog("inserire un
numero");
int numero=Integer.parseInt(stin);
JAVA: CYCLE FOR AND WHILE

While(condition){ Body of cycle;}
Condition: is the condition of the loop control , when the condition
is true the loop body is executed.

For(variable declaration; condition; incrementing variable){ Body of
cycle;}
Variable: is the control variable of the loop
Condition: is equal to the while loop
Incrementing: is the incrementing of variable until the condition
is false. This permit to stop the cycle.