Wrapper classes, Character testing andconversion, String objects, StringBuilder,

Question

Wrapper classes, Character testing andconversion, String objects, StringBuilder, Tokenizing Strings

In this exercise, we start text processing using string objectsand tokenizers, and explore wrapper classes, also. I need helpwriting a method that accepts a String object anddisplays its contents backward. Forinstance, if the string is “gravity” the method shoulddisplay “ytivarg”. I need to demonstrate the method ina program that asks the user to input a string and then passes itto the method. (Any explanations also appreciated)

Explanation / Answer

#inlcude<iostream.h>
#include<conio.h>

void backward(char[] a);

int main()
{
clrscr();
char array[20];
cout<<"Enter a word";
cin>>array;
cout<<" Word before Processing..."<<array;
backward(array);
cout<<" Word after processing..."<<array;
getch();
return 0;
}
void backward(char a[])
{
char b[20];
int v=0;
int count=0;
for(;a[v]!='';v++)
count++;
int index=0;
for(v=count;v>=0;v--)
{
b[index]=a[v];
index++;
}
b[index]='';
for(v=0;b[v]!='';v++)
a[v]=b[v];

a[index]='';
}

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