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

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 stackoverflow.com/questions/4576352/… might be of use to you. Can the characters you want to remove appear anywhere else, or only at the end? — childofsoong
– childofsoong, Commented Dec 17, 2015 at 18:54
I would try hamHamle = konHamle.substring(0, konHamle.lastIndexOf("+") - 1); — blurfus
– blurfus, Commented Dec 17, 2015 at 18:54
By relieving I meant getting rid of the character... Regards.. — Otag
– Otag, Commented Dec 17, 2015 at 18:58

Reut Sharabani · Accepted Answer · 2015-12-17 18:54:52Z

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, 2015 at 18:54

Reut Sharabani

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1 Comment

Otag Over a year ago

I2ll check and let you know. Regards,

sidgate · Accepted Answer · 2015-12-17 19:03:18Z

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, 2015 at 19:03

answered Dec 17, 2015 at 18:57

sidgate

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Comments

RockAndRoll · Accepted Answer · 2015-12-17 19:01:39Z

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, 2015 at 19:01

answered Dec 17, 2015 at 18:55

RockAndRoll

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