Question

How to replace all ‘0’ int a number with specific digit in Java

Answer 1

public class MyClass {
    static int convert_0_To_n__(int number, int d) { 
        if (number == 0) 
            return 0; 
          
        int digit = number % 10;  
        if (digit == 0) 
            digit = d; 
  
        return convert_0_To_n__(number / 10, d) * 10 + digit; 
    } 
    static int convert_0_To_n(int number, int d) { 
        if (number == 0) 
            return d; 
        else
            return convert_0_To_n__(number, d); 
    } 
    public static void main(String args[]) {
        int number = 1080030; 

        System.out.println(convert_0_To_n(number, 7));
    }
}



/*
run:

1787737

*/

 

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