how to Store and recall numbers in java ?

[Ak-Emm]

Question

is there a java method to store a number in the memory and recall it
like MS and MR in the Microsoft Calculator?

when the MS button is clicked it store the numbers
When MR button is clicked it recalls the number


lets say ive used
i.e using the String s method which is simple straight forward

actionPerformed Event e blaah blah blah
//add your handling code here

String s;
        intA;
        double Temperature;
        s=textFieldA.getText();
       A=Integer.parseInt(s);
       Temperature= (double)Math.round(A);
       s=String.valueOf(Temperature);
      txtFieldSouthCc.setText(s);

now when the MS button is clicked it stores both the values in "textFieldA" and "Temperature" to the memory

and when the MR button is clicked it recalls the stored numbers textFieldA,Temperature from the memory and sets it back
using the .setText("") method in "textFieldA" and "Temperature"

is this possible ?

your solutions are welcome:confused:

[Norm]

store a number in the memory

Not sure where "memory" is for you. Do you mean in a variable in your program or on a disk file?
Do you have a program that you are trying to write that shows what you mean?

[Eranga]

There is no such memory location for Java. All what you have to do is use variables in correct type and correct access levels and handle them as you wish. Important thing is until your application is running, values are not destroy if you are define in right way. Same thing is happen in MS calculate also, all values are available only for one instance.

[Ak-Emm]

when the MS button is clicked as mentioned earlier
both the values in "A" and "Temperature" are stored

when MR button is clicked it recalls the saved variables

back to "A" and "Temperature" textfields using the setText("") method

[Eranga]

Yes, so what's your question?

[Ak-Emm]

There is no such memory location for Java. All what you have to do is use variables in correct type and correct access levels and handle them as you wish. Important thing is until your application is running, values are not destroy if you are define in right way. Same thing is happen in MS calculate also, all values are available only for one instance.

actually there is

if you have a Windows OS i.e Vista, XP 2k

%SystemRoot%\system32\calc.exe
copy and paste this in Run


look at the buttons

MC ----memory clear
MR-----memory recall
MS----memory store
M+----add new memory to store

there should be a method in java for this thats what im trying to find out

[DarrylBurke]

Lots of responses in the cross post on the Sun Java forum at ThreadID=5335092

db

[Eranga]

Should be the quite same thing should be happen in calculator as I said earlier. In more depth in windows it handle with memory locations actually. Reason is that windows develop on low level languages. May be written in C/C++. In that case you can deal with memory. But in Java you can't. So use correct variables.

I don't think you can find the exact way how it develop on MS cal. Because windows is not an open source OS and they not allowed to know such things to public.

[Ak-Emm]

under MS --- memory store button
Action Performed (event e);
add handling code here//


double StK1;
double Stk2;

memoryStore(); {
Stk1= Double.parseDouble(textFieldA.getText());// gets client number 1
Stk2= Double.parseDouble(textFieldB.getText());// gets client number 2

this stores the numbers


now under the MR memory recall button
Action Performed event e;
// add handling code here thingi:

memoryRecall() {
textFieldA.setText(String.valueOf(Stk1)); recalls client 1 stored value
textFieldA.setText(String.valueOf(Stk1)); recalls client 2 stored value


this works partially but its not fully functional cause i get
Throws Unsupported exceptions error so nothing happens

where am i wrong that is the question to solve this? this is where im stuck

your help is kindly appreciated

[Eranga]

Can you post your code to see here. Just looking the code you have already posted here, can't pointed more.

[Ak-Emm]

"Lots of responses in the cross post on the Sun Java forum at ThreadID=5335092

db"




for better flexibilty of solutions ive posted in both sites
all experts point of views are valuable

[Ak-Emm]

the code is too long so i tried to simplify it by cutting it down

just under actionPerformed event e

i want to trigger the buttons thats all

the declarations are all set this is just an experiment so i could work on something more complex

[Eranga]

Ok, are you working on a Java IDE? If so it's not difficult.

And also if your code contains following,

memoryStore(); {

it's wrong, define a method in wrong way.

[Ak-Emm]

Should be the quite same thing should be happen in calculator as I said earlier. In more depth in windows it handle with memory locations actually. Reason is that windows develop on low level languages. May be written in C/C++. In that case you can deal with memory. But in Java you can't. So use correct variables.

I don't think you can find the exact way how it develop on MS cal. Because windows is not an open source OS and they not allowed to know such things to public.

thanks in that case ill have to work out a stack method which i havent mastered fully though
thanks for your time ........P

[Ak-Emm]

Ok, are you working on a Java IDE? If so it's not difficult.

And also if your code contains following,

memoryStore(); {

it's wrong, define a method in wrong way.

yes an IDE NetBeans 6

[Ak-Emm]

class Memory Bank{
private void memoryRecall() {

textFieldA.setText(String.valueOf(Stk1)); recalls client 1 stored value
textFieldA.setText(String.valueOf(Stk1)); recalls client 2 stored value
}
}

something like that

[Eranga]

Yes, quite similar thing you have to do.