CODEWITHSUNDEEP
javaarraysloopsfor-looprecursion
solomonTEC
solomonTEC

Reputation: 11

How can i make for loop a recursive method

How can I make this code a recursive method?

for (int i = 3; i < arr.length; i++) {
    writer.write(arr[i] + "\n");
    strout += arr[i] + "\n";
}

Upvotes: 0

Views: 118

Answers (2)

Isma
Isma

Reputation: 168

You can try encapsulating the code in a function:

 public static String printRecursive(BufferedWriter writer, String[] arr, int i) throws IOException {        
     String strout = "";
     if(i<arr.length) {
        writer.write(arr[i] + "\n");
        //System.out.println(arr[i] + "\n");
        strout += arr[i] + "\n" + printRecursive(writer,arr,i+1);
     }
    return strout;
 }

And you can call it from main:

  String strRec = printRecursive(writer,arr,3);

I hope this help you.

Edited: Added writer according last comment

Upvotes: 2

GodFather
GodFather

Reputation: 3156

Something like that?

let arr = [/* array elements */];
let idx = 3;
let stdout = "";

const recursiveMethod = () => {
  writer.write(`${arr[idx]}\n`);
  strout += `${arr[idx]}\n`;
  
  if(idx < arr.length) {
    idx++;
    return recursiveMethod();
  }
}

recursiveMethod();

Upvotes: 0

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