What are best practices for working with heap vs stack?

When working with memory management in Java, it is crucial to understand the differences between heap and stack memory. Here are some best practices to consider:

Heap Memory Best Practices

Object Creation: Use the heap for creating large objects or instances of classes as it provides more space and persistence.
Garbage Collection: Regularly review your code to minimize memory leaks by ensuring unused objects can be garbage collected.
Pooling Objects: Implement object pooling for resource-heavy objects to enhance performance and reduce garbage collection overhead.

Stack Memory Best Practices

Method Variables: Utilize the stack for method variables, which allow for quick access and automatic cleanup after method execution.
Limit Recursion: Be cautious with deep recursion, as it can lead to stack overflow errors by exhausting the stack memory.
Primitive Data Types: Prefer using primitive data types on the stack for better performance instead of boxed types.

Code Example


        // Example of stack usage
        public class Example {
            public static void main(String[] args) {
                int number = 10; // Stored in stack
                Example example = new Example(); // Stored in heap
                example.printNumber(number);
            }
        
            public void printNumber(int num) {
                System.out.println("Number is: " + num);
            }
        }

What are best practices for working with heap vs stack?

Heap Memory Best Practices

Stack Memory Best Practices

Code Example

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What are best practices for working with heap vs stack?

Heap Memory Best Practices

Stack Memory Best Practices

Code Example

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