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Why there are no pointers in Java?

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Pragya Keshap answered on February 4, 2023 Popularity 5/10 Helpfulness 2/10

answer Why there are no pointers in Java?

Why there are no pointers in Java?

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In Java there are references instead of pointers.

These references point to objects in memory.

But there is no direct access to these memory locations.

JVM is free to move the objects within VM memory.

The absence of pointers helps Java in managing memory and garbage collection effectively.

Also it provides developers with convenience of not getting worried about memory allocation and deallocation

class Rectangle 
{
  double length;
  double breadth;
}
  
class RectangleDemo
{
    public static void main(String args[])
    {
      
    // r1 is reference variable which contain 
    // the address of Actual Rectangle Object.
    Rectangle r1 = new Rectangle();
        
    // r2 is another reference variable
    // r2 is initialized with r1 means:
    // r1 and r2 both are referring same object 
    // thus it does not create duplicate object 
    // nor does it allocate extra memory.
    Rectangle r2 = r1;
      
    r1.length = 10;
    r2.length = 20;
      
    System.out.println("Value of R1's Length : " + r1.length);
    System.out.println("Value of R2's Length : " + r2.length);
  
    }
}

https://www.geeksforgeeks.org/is-there-any-concept-of-pointers-in-java/

Popularity 5/10 Helpfulness 2/10 Language java

Source: Grepper

Tags: java pointers

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Contributed on Feb 04 2023

Pragya Keshap

0 Answers Avg Quality 2/10

Why there are no pointers in Java?

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