Arrays and Multidimensional Arrays
Variables and Data Types
Primitive: int, char, double, boolean, etc.
Non-primitive: Arrays, String, ArrayList, etc.
Custom-defined: user-defined data types.
Operators and Type Casting
Arithmetic, Relational, Logical, Bitwise, Assignment, and Miscellaneous operators.
Type casting from one data type to another.
User Input and Scanner Class
Taking user input using Scanner class.
Functions and Methods
Functions are blocks of code which can be invoked using its name.
Methods are functions that are declared in a class.
Conditional Statements
If-else
Used to make decisions in a program.
Switch-case
Used to simplify if-else statements when the expression is a variable.
Arrays
A collection of elements of the same data type.
To declare an array, specify the data type followed by the array name and square
brackets.
The size of an array is fixed and cannot be changed once it is defined.
Multidimensional Arrays
A two-dimensional array is an array of arrays.
To declare a two-dimensional array, specify the data type followed by the array
name and double square brackets.
This is a set of notes for the topic of Arrays and Multidimensional Arrays in Java,
including related subtopics such as variables, data types, loops, input, functions,
and conditional statements.
Variables and Data Types
Primitive: int, char, double, boolean, etc.
Non-primitive: Arrays, String, ArrayList, etc.
Custom-defined: user-defined data types.
Operators and Type Casting
Arithmetic, Relational, Logical, Bitwise, Assignment, and Miscellaneous operators.
Type casting from one data type to another.
User Input and Scanner Class
Taking user input using Scanner class.
Functions and Methods
Functions are blocks of code which can be invoked using its name.
Methods are functions that are declared in a class.
Conditional Statements
If-else
Used to make decisions in a program.
Switch-case
Used to simplify if-else statements when the expression is a variable.
Arrays
A collection of elements of the same data type.
To declare an array, specify the data type followed by the array name and square
brackets.
The size of an array is fixed and cannot be changed once it is defined.
Multidimensional Arrays
A two-dimensional array is an array of arrays.
To declare a two-dimensional array, specify the data type followed by the array
name and double square brackets.
This is a set of notes for the topic of Arrays and Multidimensional Arrays in Java,
including related subtopics such as variables, data types, loops, input, functions,
and conditional statements.
