String Methods in Java | endsWith() equals() indexOf() isEmpty() | Java tutorial for beginners смотреть онлайн

Java String Methods with Examples: This Java Tutorial video Part 3 explains different Java String methods associated with the Java String class. Each method is explained with a brief Description, Syntax and an Example

In this video tutorial, we covered what is a string method in Java, How we define it,
endsWith()
equals()
indexOf()
isEmpty()
lastIndexOf()
replace()
startsWith()
trim()


Strings
Strings, which are widely used in Java programming, are a sequence of characters. In the Java programming language, strings are objects.

The Java platform provides the String class to create and manipulate strings.

Example:

String str = "codingxpert";

What is String in Java?
Generally, String is a sequence of characters. But in Java, string is an object that represents a sequence of characters. The java.lang.String class is used to create a string object.

A Java string is a sequence of characters that exist as an object of the class java.lang. Java strings are created and manipulated through the string class. Once created, a string is immutable -- its value cannot be changed.

methods of String:

endsWith()

The endsWith() method checks whether a string ends with the specified character(s).


equals()

The Java String class equals() method compares the two given strings based on the content of the string. If any character is not matched, it returns false.


indexOf()

The indexOf() method returns the position of the first occurrence of a value in a string. The indexOf() method returns -1 if the value is not found.


isEmpty()
The isEmpty() method checks whether a string is empty or not. This method returns true if the string is empty (length() is 0), and false if not.
lastIndexOf()

The lastIndexOf() method returns the index (position) of the last occurrence of a specified value in a string.


replace()

The replace() method searches a string for a value or a regular expression. The replace() method returns a new string with the value(s) replaced. The replace() method does not change the original string.

startsWith()

The startsWith() method returns true if a string starts with a specified string. Otherwise it returns false . The startsWith() method is case sensitive.

trim()

Definition and Usage. The trim() method removes whitespace from both sides of a string. The trim() method does not change the original string.

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In this video, We covered the following Java String Methods
1. endsWith() String Method in Java
2. equals() String Method in Java
3. indexOf() String Method in Java
4. isEmpty() String Method in Java
5. lastIndexOf() String Method in Java
6. replace() String Method in Java
7. startsWith() String Method in Java
8. trim() String Method in Java