How to Check If Two String Arrays are The Same

RedYoel :

I'm trying to solve a problem on "practice it", and I'm not able to pass all the tests to it.

The problem is:

Write a method called equals that takes in two string arrays and returns true if they are equal; that is, if both arrays have the same length and contain equivalent string values at each index.

I have tried the following code, but the test to the input equals({"a", "b", "a", "c", "a", "d", "a", "e", "a"}, {"x", "b", "a", "c", "a", "d", "a", "e", "a"}) but it doesn't work.

public static boolean equals (String [] txt1, String [] txt2){
    boolean result=false;
    if(txt1.length==txt2.length){
        for(int i=0; i<txt1.length; i++){
            if(txt1[i].equals(txt2[i])){
                result = true;
            }
            else {
                result = false;
            }
        }
    }
    else {
        return false;
    }
    return result;
}

Expected return: false My return: true

UnholySheep :

The problem lies in the loop:

for(int i=0; i<txt1.length; i++){
    if(txt1[i].equals(txt2[i])){
         result = true;
    }
    else {
         result = false;
    }
}

The if gets executed for every single element, so in essence your code only checks if the last element is the same for both arrays, as it overrides previous result = false; occurrences.

The correct solution is to immediately stop and return false once a single element is different:

for(int i=0; i<txt1.length; i++){
    if(txt1[i].equals(txt2[i])){
         result = true;
    }
    else {
         return false;
    }
}