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CKuckvs.ZahnatomLetsPlay

Multiplying Strings

Theoretically you can further increase the performance by initializing the StringBuilder to the required capacity.

Code
Diff
  • public class Kata {		
	public static String multiply(String input,int times){
    var str = new StringBuilder(input.length() * times);
    for(int i = 0; i < times; i++) {
      str.append(input);
    }
    return str.toString();
	}
}
    • public class Kata {
    • public static String multiply(String input,int times){
    • String str = "";
    • var str = new StringBuilder(input.length() * times);
    • for(int i = 0; i < times; i++) {
    • str += input;
    • str.append(input);
    • }
    • return str;
    • return str.toString();
    • }
    • }
CKuckvs.christianAW

Multiplying Strings

Java 11 made this boring ;]

Code
Diff
  • public class Kata {		
	public static String multiply(String input,int times){
		return input.repeat(times);
	}
}
    • public class Kata{
    • public static String multiply(String input,int times){
    • String save = input;
    • for (int i = 1; i < times; i++) {
    • System.out.println(input);
    • input += save;
    • }
    • if(times == 0){
    • input = "";
    • }
    • return input;
    • public class Kata {
    • public static String multiply(String input,int times){
    • return input.repeat(times);
    • }
    • }