Java .equals 字符串的错误

Question

I'm going to code a program where should be test two strings to equality. The console puts two equal words out but the if condition says nope. That's my code:

for (int i = 0; i < states.size(); i++){
    System.out.println("nextState(" + i + "): " + states.get(i).getName());
    System.out.println("rule: " + ruleSplitted.get(0));
    if(states.get(i).getName().equals(ruleSplitted.get(0))){
          actState = states.get(i);
    }
}

That says the console:

nextState(0): state1
rule: end 
nextState(1): end
rule: end 

I really don't know whats wrong there. Could somebody help me please?

Answer 1

It appears either states.get(i).getName() or ruleSplitted.get(0) has a trailing white space. You can even see it in your copy paste of the console:

nextState(0): state1
rule: end 
nextState(1): end
rule: end 
         ^Right here

Use the String#trim() method to remove the trailing whitespace(s):

if(states.get(i).getName().trim().equals(ruleSplitted.get(0).trim()))