C + + Learning (29)

1 //the process of exception handling is mainly three steps2 //throwing exceptions, catching exceptions, and handling exceptions3#include <iostream.h>4 5 classpushonfull{6 };7 8 classpoponempty{9 };Ten  One classseqstack{ A     Private: -         int*data; -         intmaxstacksize; the         inttop; -      Public: -Seqstack (intn); -~Seqstack (); +          -         voidPush (Const intitem); +         intPop (); A }; at  -Seqstack::seqstack (intN) { -top=0; -Maxstacksize=N; -Data=New int[n]; - } in  -seqstack::~Seqstack () { to     Deletedata; + } -  the voidSeqstack::P Ush (Const intItem) { *     if( This->top== This-maxstacksize) $         ThrowPushonfull ();//Throw ExceptionPanax Notoginseng      -data[top]=item; thetop++; + } A  the intseqstack::P op () { +     if(top==-1){//here is a question, top==-1 or top==0 suitable -         Throwpoponempty (); $     } $top--; -     returnData[top]; - } the  - intMain () {WuyiSeqstack Mystack (Ten); the //try{ - //for (int i=0;i<11;i++) { Wu //Mystack.push (i); - //        } About //}catch (pushonfull) { $ //cout<< "Error! Stack is full" <<endl; - //    } -      -     Try{ A          for(intI=0;i< One; i++){ +Cout<<mystack.pop () <<Endl; the         } -}Catch(poponempty) { $cout<<"the stack is empty."<<Endl; the     } the     return 0; the}

C + + Learning (29)