Trying to get a message to appear that is exactly 10 characters long. Can someone point me in the right direction of what to do when the message is SHORTER than 10 characters?
Here is my code so far:
System.out.println("Word:");
String word = scan.nextLine();
String shortword = word.substring(0, 10);
String shortworduppercase = shortword.toUpperCase();
System.out.println(shortworduppercase);
I know it has something to do with padRight but I can't seem to get anything to work.
If you are asking how to obtain a string that is padded and / or truncated to exactly 10 characters, then there is a great number of ways to do it. For example, here's one that handles all non-null cases without depending on any (explicit) conditional logic:
String getTenChars(String input) {
return new StringBuilder(input).append(" ").subString(0, 10);
}
If the length of your string is shorten than the end index that you're trying to substring you will get java.lang.StringIndexOutOfBoundsException.
In this case you need to check the length of your string before substring it
int maxLength = 10;
String shortWord;
if (word.length() <= maxLength){
shortWord = word;
} else {
shortWord = word.substring(0,maxLength);
}
System.out.println(shortWord);
And if you really need a 10 length string, you can use setLength method of StringBuilder class.
For example:
int maxLength = 10;
StringBuilder shortWord;
if (word.length() <= maxLength) {
shortWord = new StringBuilder(word);
shortWord.setLength(10);
} else {
shortWord = new StringBuilder(word.substring(0, maxLength));
}
