Function Description The Java String Class isEmpty() function is used to check if the String is empty. It returns boolean value(true/false). It returns true if and only if the string length is 0 otherwise false Method Signature public boolean isEmpty() Parameter none Return Type The Return Type is boolean, true if string length is zero…

Function Description The Java String class equalsIgnoreCase() method is used to compare the string with the specified string. It is case insensitive during the comparison. It returns boolean true/false value. Both strings will be equal if they are of the same length and corresponding characters in both the strings are the same, irrespective of the…

Function Description This method is used to compare the Java String with the specified object. It returns boolean true/false value. It is case sensitive during comparison. Both String objects will be equal only if both have the same sequence of characters as well as the same character case(lowercase/uppercase). For Example: If you have 4 String…

Function Description The Java String class join() method is used to concatenate the specified CharSequence arguments together using the specified delimiter. It is a static method and returns a concatenated string. If an argument is passed as a null element, it concatenates the “null” as a string. In String class join() method is defined as…

Function Description The Java String class contains() method is used to verify/search a specified sequence of characters in the string. It is case sensitive and checks the sequence of character as well as the case of the character(s). It returns true if the specified sequence of character(s) found in the string otherwise false. Method Signature…

Function Description The Java String class substring() method is used to get the substring of the string. The substring begins from the character specified at the begin-index to the end of the string or to the character specified at end-index.  In returned substring, character at begin-index is included while character at end-index is excluded. In…

Function Description The Java String class format() method is used to get the formatted string. This method uses specified locale, format string, and arguments to return the formatted string. It is a static method of String class. In the String class, the format() method is defined as an overloaded method.  One format() is defined without…

Function Description The Java String class length() method is used to get the total number of characters count in a string. The length of the string is equal to the number of Unicode characters in the string. In length count, it considers all whitespaces, special characters, numbers, alphabets, etc. like- string “Hello ! 1 #@  ”…

Function Description The Java String class charAt() method is used to get the character of a string at the specified index. The first character of the string is at index 0 and the last character of the string is at index string_length-1. Index range is from 0 to string_legth-1 Method  Signature public char charAt(int index)…

A String is a sequence of characters like “Greeting”. Java does not have String as an in-built data type, while Java standard library does keep a predefined String class. String class comes under package java.lang. It is the final type of class that is why string is an immutable object which means it is constant…

In java, To store the value in variables, we need data types. Data type is a kind of data that is used to store a specific type of value. Java is a strongly types language, meaning every variable must have its declaration type since variables are declared as per data types. Once a variable is…

Developers spend a lot of time to develop, compile, debug, and run the applications. Since every Java developer looks for a programming editor or Integrated Development Environment (IDE) that can help them in writing Java code and using class libraries and frameworks. IDEs make developers life easy in terms of compile, debug and to run…

In this topic, we will understand and write a simple Java program (Assuming Java is installed on your system). A Program is all about step by step instructions to be executed by the computer to achieve our requirement in a quick and efficient way. To understand Java basics we will write a simple program to…

To start Java programming it is required to set up your Java environment properly to compile and run the programs on your system. Environment variables are global system variables that are useful to store system-wide values and accessible by all the processes/users running on Operating System (OS), such as Windows, macOS, and Linux. Java software…

Java is an object-oriented class-based easy and secure programming language developed by Sun Microsystems in 1995 and later owned by Oracle Corporation. Java is a platform-independent or we can say cross-platform multi-purpose programming language (cross-platform means can run on any platform). Java is also called WORA (Write Once and Run Anywhere) means Java Source code…