![]() Try with a live example, execute the code instantly with our powerful Online Java Compiler. Returns zero if this object is equal to the specified other object, a negative number if its less. You can notice that the below example returns positive integer which is difference of both dates. Compares this object with the specified object for order. If the specified date is greater than the date then it returns a positive integer. LocalDate localDate2 = LocalDate.of(2018, 2, 22) Note: We should write the compareTo() method in such a way that if this( I am referring to the this keyword here) is less than the passed object then it should. LocalDate localDate1 = LocalDate.of(2018, 2, 20) In this example we have two dates and using compareTo() to check whether the specified date is older to other on not. If it is equal to specified object then it returns zero. If this object is less than the specified object then it returns a negative number. The compareTo() method returns negative integer if the specified date is less than the date. The syntax of using the compareTo () method is: int compareTo (objecttocompare) The method returns an integer unlike a Boolean in case of equals () method. It returns negative if date is less else positive if greater Otherdate: Another date which is to be compared The compareTo() method belongs to the Comparable interface in Java. Syntax public int compareTo(ChronoLocalDate otherdate) This method is useful for comparing two dates in Java application. alphabetically, for example, b is greater than a ). This method is used to compare two strings lexicographically (i.e. Since we store java objects in Collection there are also certain Set and Map which provides automating sorting when you insert element on that e.g. In short, HashMap. Any class implementing the Comparable interface must override the compareTo () method. There is a binding contract here which states that the compareTo and equals method of key class should be compatible which means compareTo should retun 0 and equals should return true for two equal key objects so that your TreeMap key will be unique. ![]() This method returns the value 0 if this Integer is equal to the argument Integer, a. Values stored within an OrderedMap should implement Comparable ie. It returns an integer value and takes an instance of CronoLocalDate as an argument. Java has an interface called Comparable, which contains the comapreTo () method. compareTo() method compares two Integer objects numerically. An interface the supports a Map whose values are kept in increasing order. ![]() Java Map has 2 values while Set contains only single value while converting Map to Set, we need to take a call of converting either map values or keys, so either we will get a set of keys or set of values (we can get both by using some wrapper to have both values).The compareTo() method is used to compare a date with another date. It compares strings on the basis of the Unicode value of each character in the strings. It returns a positive number, negative number, or 0. To convert, Java Map to Set, we can use the conventional constructor with HashSet, however, there are few things to consider before we proceed with the conversion. pareTo () Method The Java String class compareTo () method compares the given string with the current string lexicographically. How Can I Convert Python Code To Java? - Developer Resources
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