Question

Can you do this please: the code should be java

just give me this and I will finish the rest don't worry about infix or postfix conversion and evaluation.

just I need these two string should give value. and get a new string like this "12+34-/5".

String s = "ab+cd-/e*"

String s1 = "1232451"

I need code giving each character of String s value of strings1 ignoring operators.

example: a = 1, b = 2, c = 32, d = 4, e = 51, then give me new String like "12+324-/51*"

thank you

Answer 1

I hope the following code is what you are looking for.

Substitute.java
------
public class Substitute {
  
   public static String substitute(String s1, String s2){
       String str = "";
       int i = 0, j = 0;
       char c;
       while(i < s1.length()){
           c = s1.charAt(i);
           if(Character.isAlphabetic(c)){
               str += s2.charAt(j);
               j++;
           }
           else{
               str += c;
           }
           i++;
       }
       return str;
   }
   public static void main(String[] args) {
       String s1 = "ab+cd-/e*";
       String s2 = "1232451";
      
       System.out.println("s1 = " + s1);
       System.out.println("s2 = " + s2);
       System.out.println("After substitution, it is " + substitute(s1, s2));

   }
}

output
---
s1 = ab+cd-/e*
s2 = 1232451
After substitution, it is 12+32-/4*