Iam getting records "RANDOMLY" to vf page. now How to create a previous button.which gives the same previous questions when i click on previous button?

Iam getting records "RANDOMLY" to vf page. now How to create a previous button.which gives the same previous questions when i click on previous button?

Hi all,on vf page,iam having 4 checkbox, as
[].a)salesforce
[].b)sap
[].c)oracle
[].d)siebel
[].e)ibm
[].f)cloud
when ever checkbox like a,f are checked , only a) and f) should go to my custom object as A,F ..so after i need to compare it with correct answer which is in other object as A,F,,HOW TO COMPARE IT?? Am not gud in wrapper class,can any one help me to move..

Hi all,on vf page,iam having 4 checkbox, as
[].a)salesforce
[].b)sap
[].c)oracle
[].d)siebel
[].e)ibm
[].f)cloud
when ever checkbox like a,f are checked , only a) and f) should go to my custom object as A,F ..so after i need to compare it with correct answer which is in other object as A,F,,HOW TO COMPARE IT?? Am not gud in wrapper class,can any one help me to move..

Iam getting records "RANDOMLY" to vf page. now How to create a previous button.which gives the same previous questions when i click on previous button?

Hi all,on vf page,iam having 4 checkbox, as
[].a)salesforce
[].b)sap
[].c)oracle
[].d)siebel
[].e)ibm
[].f)cloud
when ever checkbox like a,f are checked , only a) and f) should go to my custom object as A,F ..so after i need to compare it with correct answer which is in other object as A,F,,HOW TO COMPARE IT?? Am not gud in wrapper class,can any one help me to move..