Java Constructor

  • Constructor is a special method.
  • Constructor name and the class name must be same.
  • Constructor never returns any value.
  • Constructor is specifically used to initialize data or objects.
  • Constructor executes automatically when an object is created, which is the main advantage.
  • If a program having no constructor, then at the time of compilation, the compiler provides a default constructor.




class A {
    int x;
    at the compile time =>  class A {
            inr x;
            -- --A() {}
        -- -- --




There are 2 types of constructors, like 0-arg constructor and n-arg constructor(parameterized constructor).

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