Java Constructors | Java Course
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Java constructors initialize objects when they are created. A constructor has the same name as its class and has no explicit return type. There are two types of constructors: a no argument constructor that does not accept any parameters and initializes fields to default values, and a parameterized constructor that accepts parameters and initializes fields to the values passed in.
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Java Constructors | Java Course
- 2. Java Constructor Basics ā A constructor initializes an object when it is created. ā It has the same name as its class. ā Constructors have no explicit return type. ā Java automatically provides a default constructor if there is no explicit constructor.
- 3. Java Constructor Types - No Argument Constructor ā It doesn't accept any parameter. ā Syntax: Public class TestClass { Int num; TestClass() { num = 10; } }
- 4. Java Constructor Types - Parameterized Constructor ā It accepts parameters. ā Syntax: class TestClass { int x; TestClass(int i) { x = i; } }