String Methods in JAVA

-Most Common String Methods-

· Java provides a variety of built-in features for the String class to help us implement and analyze strings effectively and efficiently.

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· The following string methods are some the methods that use mainly in our java projects.

Most common string methods

· length() : return the length of the string.

length()

· charAt(int index) : Returns the character at the specified index.

charAt()

· indexOf(String str) : Returns index of the first meetup of a substring.

indexOf()

· lastIndexOf(String str) : Returns index of the last meetup of a substring.

lastIndexOf()

· toUpperCase() : Converts all characters to upper case.

toUpperCase()

· toLowerCase() : Converts all characters to lower case.

toLowerCase()

· trim() : Removes whitespace from both ends.

trim()

· replace(oldChar, newChar) : Replaces the character with another one.

replace()

· isEmpty() : Checks whether the string is empty.

isEmpty()

· contains() : Checks if string contains a specific sequence.

contains()

· equals() : Checks if two strings have the same sequence of characters.

equals()

· equalsIgnoreCase() : Checks equality ignoring case.

equalsIgnoreCase()

SUMMARY

Ø These JAVA string methods cover the most common operations you’ll need when working with Java environment.

Ø The string class in Java is very critical because it provides efficient handling of data.

Ø Using these methods helps clean, efficient implementation of textual data in software engineering projects.