Hello I need help with this task. Make a program that takes input and checks to

Question

Hello I need help with this task.

Make a program that takes input and checks to see if it matches a rule. For example:If the format was

(number +/-/*/// num)

so make the program store an input as a string, and create a counter object. Then have the program iterate through the characters of the string. If a character was '(' and the counter was 0 increase the counter and added that character to an output string. Then look for if a following character was a digit and the counter was 1. If this is true then add the character and increase the counter. Continue this for the whole string.So if t by the end, the counter reaches 5 then it has found all of the characters it was looking for so output the output string. If not, output and error message.

Can use java or c++. I was trying with java first.

Explanation / Answer

import java.util.*;

class char_count
{
   public static void main(String args[])
   {
       Scanner o=new Scanner(System.in);
       String s= o.nextLine();
       String s1="";
       int i,d=0;
       char c;
       for(i=0;i<s.length();i++)
       {
           c=s.charAt(i);
           if(c=='(')
           {
               d++;
               s1=s1+c;      

           }
           if(d>=1 && Character.isDigit

(c))
           {
               d++;
               s1=s1+c;
           }
           else if(c==')')
           {
               break;
              
           }
       }

       System.out.println(s1);
   }
}
      
          

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