What is the bitwise AND operator?

The bitwise AND operator is a binary operator that produces a 1 bit if both of the bits in the operands are 1. Otherwise, it produces a 0 bit. It is denoted by the symbol &. It can be applied to the integer type operands, i.e., byte, short, char, int, and long. The table given below shows the......[read more]

What is the increment operator?

The increment operator is a unary operator that increases the value of its operand by one. For example, the expression a++ increases the value of a by 1. This statement is equivalent to the expression a = a + 1 . The increment operator can be used in either of the two forms given below:......[read more]

What are assignment operators?

There are two forms of assignment operators used in expressions. The first one is called the simple assignment operator and the other one is called the compound assignment operator. Simple assignment operator: The simple assignment operator assigns the left operand with the value of the......[read more]

What is the modulus operator?

The modulus operator is a binary arithmetic operator that returns the remainder of the division operation. It can be used with both floating-point values and integer values. The use of the modulus operator is shown as follows: opL % opR where, opL is the left operand and opR is the right......[read more]

How are packages declared?

Packages are declared by using the package statement. The word package is a keyword in Java. The package statement is not technically needed to write a complete Java program. However, if it appears, it must be the first executable statement in the program. Only comments or white spaces are......[read more]

What are static variables?

Variables that have only one copy per class are known as static variables. They are not attached to a particular instance of a class but rather belong to a class as a whole. They are declared by using the static keyword as a modifier. For example: static type varIdentifier; where, the......[read more]

What is a block?

When a sequence of statements are put inside the curly braces, they form a block. A block is a Java language feature that allows a programmer to execute multiple lines of code at a time. A block is executed by executing all the statements within the braces in the order from first to last. If......[read more]

What are local variables?

Variables declared within blocks (i.e., inside braces) are known as local variables. They are so called because they are not available for use outside the block where they are declared. These variables are temporary variables, which are visible to the program only within the scope of the block.......[read more]

What is the import statement?

The import statement is a compilation unit that is used to bring a specified class, or an entire package, into the visibility of a source file. The import statement is an optional part of a source file. If the import statements appear in a source file, they must be placed before any class......[read more]

What is the round() method?

The round() method is a static method of the java.lang.Math class. It takes a floating-point number as an argument and returns an integer representation of the number. The value returned by the round() method is the same as the value returned by the Math.floor() method in the following......[read more]