static and non static keyword in java

static keyword in java

// example on static variable in java.
class EmployeeDetails
{
   // instance variable
   int empID;
   String empName;
   // static variable
   static String company = "FlowerBrackets";
   // EmployeeDetails constructor
   EmployeeDetails(int ID, String name)
   {
      empID = ID;
      empName = name;
   }
   void print()
   {
      System.out.println(empID + " " + empName + " " + company);
   }
}
public class StaticVariableJava
{
   public static void main(String[] args)
   {
      EmployeeDetails obj1 = new EmployeeDetails(230, "Virat");
      EmployeeDetails obj2 = new EmployeeDetails(231, "Rohit");
      obj1.print();
      obj2.print();
   }
}

Posted by: Guest on November-21-2020

Source

// example on static block in java. public class StaticBlockExample { // static variable static int a = 10; static int b; // static block static { System.out.println("Static block called."); b = a * 5; } public static void main(String[] args) { System.out.println("In main method"); System.out.println("Value of a : " + a); System.out.println("Value of b : " + b); } }

// Static vs Object Called // Static Methods don't require you to call a constructor // Initialize statically public class MyClass { private static int myInt; static { myInt = 1; } public static int getInt() { return myInt; } } // Then call it System.out.println(MyClass.getInt()); // VS Constructor public class MyClass { private int myInt; public MyClass() { myInt = 1; } public int getInt() { return this.myInt; } } // Then call it MyClass myObj = new MyClass(); System.out.println(myObj.getInt());

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