Create a string with n characters

by

Likely the shortest code using the String API, exclusively:

String space10 = new String(new char[10]).replace('\0', ' ');

System.out.println("[" + space10 + "]");
// prints "[          ]"

As a method, without directly instantiating char:

import java.nio.CharBuffer;

/**
 * Creates a string of spaces that is 'spaces' spaces long.
 *
 * @param spaces The number of spaces to add to the string.
 */
public String spaces( int spaces ) {
  return CharBuffer.allocate( spaces ).toString().replace( '\0', ' ' );
}

Invoke using:

System.out.printf( "[%s]%n", spaces( 10 ) );

More Related Contents:

  1. How to get address of a Java Object? [duplicate]
  2. What is the difference between String and StringBuffer in Java?
  3. What is difference between mutable and immutable String in java
  4. incompatible types required char found java.lang.string
  5. All possible Angram String combinations in java [closed]
  6. Regex for converting xml tags key to camel case
  7. Change date format in a Java string
  8. How to split a string with any whitespace chars as delimiters
  9. What is meant by immutable?
  10. How to convert Java String into byte[]?
  11. How to find nth occurrence of character in a string?
  12. How do I trim a file extension from a String in Java?
  13. ArrayList initial capacity and IndexOutOfBoundsException [duplicate]
  14. CharSequence VS String in Java?
  15. Java String – See if a string contains only numbers and not letters
  16. Remove trailing zero in Java
  17. Converting String to “Character” array in Java
  18. How can I remove a substring from a given String?
  19. Java String array: is there a size of method?
  20. Can I add new methods to the String class in Java?
  21. Extract the difference between two strings in Java
  22. Convert String to Uri
  23. Calculating frequency of each word in a sentence in java
  24. Remove all non-“word characters” from a String in Java, leaving accented characters?
  25. Fastest way to strip all non-printable characters from a Java String
  26. Simple way to sort strings in the (case sensitive) alphabetical order
  27. Compare two hex strings in Java?
  28. What is a Java String’s default initial value?
  29. Why does byteArray have a length of 22 instead of 20?
  30. Behavior of String literals is confusing

Leave a Comment