java

[ashishthakre]

can any buddy tell me can we make constructer as private in java the progran will run or not

[EINSTEIN_007]

Have a look here: http://www.javapractices.com/topic/TopicAction.do?Id=40

[Expertz]

If you have a method that has a parameter that can take on only a limited set of values then use typesafe enumeration. Example method

public void setMode(TypeSafeEnum  mode)
{
...
}

where TypeSafeEnum is defined by

public class TypeSafeEnum {
  
  public static final TypeSafeEnum ONE = new TypeSafeEnum();
  public static final TypeSafeEnum TWO = new TypeSafeEnum();
  public static final TypeSafeEnum THREE = new TypeSafeEnum();
  public static final TypeSafeEnum FOUR = new TypeSafeEnum();
  
  private TypeSafeEnum() {}
}

It then become impossible to pass a wrong value (other than null) to the method.

[Gusgr8]

I make all my constructors private:

public class Private {
    private String string;
 
    private Private(String string) {
        this.string = string;
    }
 
    public String toString() {
        return string;
    }
}

Then I do the following:

import java.lang.reflect.*;
 
public class Test{
    public static void main(String[] args) throws Exception {
         Constructor<Private> constructor = Private.class.getDeclaredConstructor(String.class);
         constructor.setAccessible(true);
         Private obj = constructor.newInstance("bingo");
         System.out.println(obj);
    }
}

[ages]

ava is a programming language expressly designed for use in the distributed environment of the Internet. It was designed to have the "look and feel" of the C++ language, but it is simpler to use than C++ and enforces an object-oriented programming model. Java can be used to create complete applications that may run on a single computer or be distributed among servers and clients in a network.
------------------------------
ages

Now a days every animated games develop by the help of Java. The looking of Java is attract to people and the man who love the plying games. The use of MVC Pattern by architectural make the Java game more attractive.

[Katty]

Typically you declare methods private to prevent others from calling them. If you declare a constructor private, you prevent others from creating objects of your class from the outside. This makes sense under some circumstances, e.g. if you implement the so called singleton pattern. This pattern makes sure, that only one object of a certain class exists, so you have to control explicitly, who creates that one and only object.