How can I relieve myself from the last character of a String variable java

Question

I have string variable where at certain times the variable has "+" or "#" characters at the end of the string. I want to remove these characters from the end of the string. I wrote the following code but it doesn't work. The code compiles and the else command works but the if and if else statements do not work. Thank you for your help

if (konHamle.contains("+") ) 
{
    int kont1 = konHamle.indexOf("+");
    hamHamle = konHamle.substring(0, konHamle.length() - 1);
    break;
} 
else 
{
    hamHamle = konHamle;
    break;

}

The solution to http://stackoverflow.com/questions/4576352/java-remove-all-occurrences-of-char-from-string might be of use to you. Can the characters you want to remove appear anywhere else, or only at the end? — childofsoong, Dec 17 '15 at 18:54
I would try `hamHamle = konHamle.substring(0, konHamle.lastIndexOf("+") - 1);` — blurfus, Dec 17 '15 at 18:54
By relieving I meant getting rid of the character... Regards.. — Otag, Dec 17 '15 at 18:58
Do not work: Compiles and runs but does not produce a string if the condition is True, however the else statement works.. — Otag, Dec 17 '15 at 19:40

score 3 · Answer 1 · answered Dec 17 '15 at 18:54

3

This is much simpler using String.endsWith():

if (konHamle.endsWith("+")){
    konHamle = konHamle.substring(0, konHamle.length() - 1);
}

Or even shorter (less readable though):

 konHamle = konHamle.endsWith("+") ? konHamle.substring(0, konHamle.length() - 1) : konHamle;

answered Dec 17 '15 at 18:54

Reut Sharabani

30,449
6
70
88

I2ll check and let you know. Regards, – Otag Dec 17 '15 at 18:58

RockAndRoll · Answer 2 · 2015-12-17T19:01:39.577

0

You can use substring method of String.

public String removeLastPlusMethod(String str) {
    if (str.length() > 0 && str.charAt(str.length()-1)=='+') {
      str = str.substring(0, str.length()-1);
    }
    return str;
}

You can also use endsWith method to check the last character of a string.

edited Dec 17 '15 at 19:01

answered Dec 17 '15 at 18:55

RockAndRoll

2,247
2
16
35

sidgate · Accepted Answer · 2015-12-17T19:03:18.323

0

indexOf gives you the first occurence, hence your code might not be working

Try regex. $ marks the end of line, this will also handle multiple characters like # and + as mentioned in the question.

konHamle = konHamle.replaceAll("[#+]$", "");

edited Dec 17 '15 at 19:03

answered Dec 17 '15 at 18:57

sidgate

14,650
11
68
119

How can I relieve myself from the last character of a String variable java

3 Answers3