New to netbeans java need help with two questions

[full zenith]

<@&987246399047479336> please have a look, thanks.

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public String removeFirstTwoChars(String str) {
    if (str.length() < 2) {
        return str;
    } else if (str.charAt(0) == 'f') {
        return "f" + str.substring(2);
    } else {
        return str.substring(2);
    }
}

//2) Write a method that will take in a string and return true if the string contains the word "java" regardless of case, false otherwise.

public boolean containsJava(String str) {
    String lowerCaseStr = str.toLowerCase();
    return lowerCaseStr.contains("java");
}

[tulip lava]

what exactly do you need help with