How to compare String instances : String Compare « Data Type « Java






  1. Java
  2. Data Type
  3. String Compare

How to compare String instances

        
class MainClass {
  public static void main(String[] args) {
    String s1 = "abc";
    String s2 = "abc";
    String s3 = "def";

    if (s1 == s2)
      System.out.println("s1 == s2");

    if (s1 != s3)
      System.out.println("s1 != s3");

    if (s2 != s3)
      System.out.println("s2 != s3");

    String s4 = s1.toUpperCase();

    if (s4 != s1)
      System.out.println("s4 != s1");

    System.out.println("s1 = " + s1);
    System.out.println("s4 = " + s4);
  }
}








Related examples in the same category

1.String.compareTo
2.Check order of two strings
3.Check order of two strings ignoring case
4.Compare Strings
5.Comparing Strings
6.A string can be compared with a StringBuffer
7.Compares all Strings in an array and returns the index at which the Strings begin to differ.
8.Compares all Strings in an array and returns the initial sequence of characters that is common to all of them.
9.Compares two Strings, and returns the index at which the Strings begin to differ.
10.Compares two Strings, and returns the portion where they differ.
11.Compares two Strings, returning true if they are equal ignoring the case.
12.Compares two Strings, returning true if they are equal.
13.Compress 2 adjacent (single or double) quotes into a single (s or d) quote when found in the middle of a String.
14.Compute Levenshtein distance
15.Find the Levenshtein distance between two Strings.
16.Compare two String[] for differences, either may be null
17.count Occurrences
18.Returns the length of the longest shared prefix of the two input strings.
19.Compares two strings: recognizes and handles embedded numbers.
20.Returns the levenshtein distance of two strings