java provides a rich operator environment. Most of its operators can be divided into the following four groups: arithmetic, bitwise, relational, and logical. Java also defines some additional operators that handle certain special situations Arithmetic Operators Arithmetic operators are used in mathematical expressions in the same way that they are used in algebra. The following … Read more
In java If the two types are compatible, then Java will perform the conversion automatically Example Assign an int value to a long variable Java’s Automatic Conversions When one type of data is assigned to another type of variable, an automatic type conversion will take place if the following two conditions are met The two … Read more
The variable is the basic unit of storage in a Java program. A variable is defined by the combination of an identifier, a type, and an optional initializer. In addition, all variables have a scope, which defines their visibility, and a lifetime. Declaring a Variable in java In Java, all variables must be declared before … Read more
Java defines eight primitive types of data: byte, short, int, long, char, float, double, and boolean byte The smallest integer type is byte. This is a signed 8-bit type that has a range from –128 to 127. Variables of type byte are especially useful when you’re working with a stream of data from a network … Read more
In Java programming, lexical issues refer to problems related to the syntax and semantics of the language. These issues include errors in the naming of variables and methods, incorrect use of keywords, and invalid expressions or statements. Example of Lexical Issues in Java Invalid identifier: int 3years = 2023; // Identifier starts with a number … Read more
List of java Keywords There are 50 keywords currently defined in the Java language . These keywords, combined with the syntax of the operators and separators, form the foundation of the Java language. These keywords cannot be used as names for a variable, class, or method Table of java Keywords abstract continue for new switch … Read more
The simplest form of the for loop is for(initialization; condition; iteration) statement; In its most common form, the initialization portion of the loop sets a loop control variable to an initial value. The condition is a Boolean expression that tests the loop control variable. If the outcome of that test is true, the for loop … Read more
The Java if statement works much like the IF statement in any other language. Further, it is syntactically identical to the if statements in C, C++, and C#. Syantax if(condition) statement; Here, condition is a Boolean expression. If condition is true, then the statement is executed. If condition is false, then the statement is bypassed. … Read more
A string in java is a sequence of characters treated as a unit Strings in Java standard objects with built-in language support String – class for immutable (read-only) strings StringBuffer – class for mutable strings can be converted to other types like integers and booleans like other classes, String has constructors and methods unlike other … Read more
Delimiters in java are the characters that split the string into tokens In java we can define any characters as delimiter There are many string split methods provides by Java that uses whitespace character as a delimiter. The whitespace delimiter is the default delimiter in Java The string is made up of two types of … Read more