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Judul : How To Compare 2 String Inwards Coffee - String Comparing Example
link : How To Compare 2 String Inwards Coffee - String Comparing Example

How To Compare 2 String Inwards Coffee - String Comparing Example

String comparing is a mutual programming chore in addition to Java provides several means to compare 2 String inward Java. String is a special course of pedagogy inward Java, String is immutable in addition to It’s used a lot inward every unmarried Java plan starting from uncomplicated attempt to company Java application. In this Java String compare tutorial nosotros volition run into different ways to compare 2 String inward Java in addition to notice out how they compare String in addition to when to role equals() or compareTo() for comparing etc.

Here are 4 examples of comparing String in Java

1) String comparing using equals method

2) String comparing using equalsIgnoreCase method

2) String comparing using compareTo method

4) String comparing using compareToIgnoreCase method

We volition run into String compare Example using each of this method inward illustration section, before that let's instruct unopen to theory:

This article is inward continuation of my before postal service on String  e.g. Difference betwixt String in addition to StringBuffer inward Java in addition to How to supplant String inward coffee using regular expression etc. If you lot haven’t read them already you lot may notice them useful in addition to worth reading.

Compare 2 String using equals method inward Java

5 tips to override equals()method inward Java for to a greater extent than details on equals in addition to its implementation. For illustration for 2 Strings "Sony" in addition to "Sony", equals() will render truthful but for "Sony" in addition to "SONY" it volition render false.

Compare String using equalsIgnoreCase method inward Java

equalsIgnoreCase is to a greater extent than liberal than equals in addition to compare 2 strings ignoring in that place case. So if 2 String contains same characters in addition to inward same lodge despite of in that place instance e.g. lower case, upper case, Capital instance or Camel instance they volition live on equal past times equalsIgnoreCase.For illustration "sony" in addition to "SONY" 2 Strings volition live on same past times equalsIgnoreCase in addition to it volition render truthful but "Sony" in addition to "Samsung" volition non live on same in addition to it volition render imitation because they don't comprise same characters.

Comparing String using compareTo

compareTo are actual comparing method dissimilar equals()and equalsIgnoreCase() in addition to tell us whether 2 Strings are lexicographically equal, precedes or follows each other. if you lot desire to form Strings lexicographically compareTo() method is used. this is too called natural lodge of String.   returns zippo if 2 Strings are same, less than zippo if calling string comes before declaration string in addition to greater than zippo if calling string comes afterwards than declaration string equally shown inward illustration below. See things to shout out back piece overriding compareTo method inward Java for more especial on compareTo method.        

Compare String using compareToIgnoreCase

Similar to compareTo() method alongside ignoring instance similar equalsIgnoreCase() in addition to render same values equally returned past times compareTo during String comparison.

Don't role "==" for String comparison

Many Java programmer makes mistake of using "==" for string comparison. "==" only banking company friction match if 2 reference variable are pointing 2 same object inward Java heap in addition to since String is immutable inward Java in addition to maintained inward String puddle 2 String literal refer same String object which gives feel that "==" tin sack live on used to compare string which is incorrect. ever role equals() method for equality banking company friction match in addition to compareTo method for actual string comparison.

Another means of comparing String is writing custom Comparator inward Java. write your comparing logic inward compare() method in addition to than you lot tin sack role that logic to compare 2 strings.

public class StringComparisonExample {

    public static void main(String args[]) {

        String tv = "Bravia";
        String boob tube = "Bravia";

        // String compare illustration using equals
        if (tv.equals(television)) {
            System.out.println("Both tv in addition to boob tube contains same letters in addition to equal past times equals method of String");
        }

        // String compare illustration inward coffee using compareTo
        if (tv.compareTo(television) == 0) {
            System.out.println("Both tv in addition to boob tube are equal using compareTo method of String");
        }

        boob tube = "BRAVIA";

        // Java String comparing illustration using equalsIgnoreCase
        if (tv.equalsIgnoreCase(television)) {
            System.out.println("tv in addition to boob tube are equal past times equalsIgnoreCase method of String");
        }

        // String comparing illustration inward coffee using CompareToIgnoreCase
        if (tv.compareToIgnoreCase(television) == 0) {
            System.out.println("tv in addition to boob tube are same past times compareToIgnoreCase of String");
        }

        String sony = "Sony";
        String samsung = "Samsung";

        // lexicographical comparing of String inward Java alongside ComapreTo
        if (sony.compareTo(samsung) > 0) {
            System.out.println("Sony comes after Samsung inward lexicographical order");
        } else if (sony.compareTo(samsung) < 0) {
            System.out.println("Sony comes before Samsung inward lexicographical order");
        }
    }

}

Output:
Both tv in addition to boob tube contains same letters in addition to equal past times equals method of String
Both tv in addition to boob tube are equal using compareTo method of String
tv in addition to boob tube are equal past times equalsIgnoreCase method of String
tv in addition to boob tube are same past times compareToIgnoreCase of String
Sony comes after Samsung inward lexicographical order

These were unopen to common examples of comparing string inward Java. Avoid mutual error of using equality operator “==” for comparing String instead ever role equals() method.

Further Learning
Data Structures in addition to Algorithms: Deep Dive Using Java
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How to dissever String inward coffee alongside Example

How to convert String to Date inward Java alongside Example

How to convert String to Enum inward Java alongside Example

How to convert String to Integer inward Java alongside Example

How to convert String to Double inward Java alongside Example

How to convert char to String inward Java alongside Example

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