How to repeat a String n number of times?

Question

I tried the following and it fails to output anything. I would ideally like to have the String text repeated n number of time by int multiplier. What am I doing wrong?

String text and int multiplier are passed as arguments from another method.

public static String repeatText(String text, int multiplier)
{
  String value = "";
  StringBuilder repeat = new StringBuilder(text.length() * multiplier);
  repeat(repeat, text, multiplier);

  value.equals(repeat);

  System.out.println("Text Repeated:");
  System.out.println("-----------");
  System.out.println(repeat);
  System.out.println("--------------");

  return value;
}

@tangens how did you decide this question is duplicate? this question is not fully describe at least. — Ruchira Gayan Ranaweera, Feb 18 '14 at 07:11

score 1 · Answer 1 · answered Feb 18 '14 at 07:11

1

Try the following method:

 public static String repeat(String toRepeat, int times) {
    if (toRepeat == null) {
        toRepeat = "null";
    }

    if (times <= 0) {
        return "";
    }

    StringBuilder sb = new StringBuilder();
    for (int i = 0; i < times; i++) {
        sb.append(toRepeat);
    }

    return sb.toString();
}

answered Feb 18 '14 at 07:11

ovunccetin

8,443
5
42
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You don't have to validate your input. `append` tests for null, and if value of `times` is not positive loop will not execute making `st.toString()` return `""`. – Pshemo Feb 18 '14 at 07:18

Mahesh · Answer 2 · 2014-02-18T07:14:51.017

1

user for loop

for(int i=1; i<=multiplier; i++)
{

your logic

}

edited Feb 18 '14 at 07:14

answered Feb 18 '14 at 07:12

Mahesh

730
7
26

score 0 · Answer 3 · answered Feb 18 '14 at 07:15

0

 public static void repeat(StringBuilder repeat,String text, int multiplier){

    for(int i=0; i<multiplier; i++){
        repeat.append(text);
    }
}

answered Feb 18 '14 at 07:15

Shekhar Khairnar

2,643
3
26
44

How to repeat a String n number of times?

3 Answers3