How to compare strings in Java?

You can compare two Strings in Java using the compareTo() method, equals() method or == operator.

The compareTo() method compares two strings. The comparison is based on the Unicode value of each character in the strings. The character sequence represented by this String object is compared lexicographically to the character sequence represented by the argument string.

• The result is a negative integer if this String object lexicographically precedes the argument string.
• The result is a positive integer if this String object lexicographically follows the argument string.
• The result is zero if the strings are equal, compareTo returns 0 exactly when the equals(Object) method would return true.

The equals() method of the String class compares this string to the specified object. The result is true if and only if the argument is not null and is a String object that represents the same sequence of characters as this object.
You can also compare two strings using == operator. But, it compares references of the given variables not values.

Fendadis John

Published on 12-Feb-2018 06:33:21

• Related Questions & Answers
• Java Program to Compare Strings
• How to Initialize and Compare Strings in Java?
• Compare two Strings in Java
• How do I compare strings in Java?
• Java Program to Compare Two Strings
• Compare two strings lexicographically in Java.
• Java Program to compare strings for equality
• How to compare two strings without case sensitive in Java
• How to initialize and compare strings?
• How does the Java compareTo() method, compare strings?
• Compare the two Strings lexicographically in Java
• Compare two Strings lexicographically in Java programming
• How to compare date strings in Python?
• Compare Strings in Arduino
• How to Initialize and Compare Strings in C#?