Basic Memory-Saving Techniques for Java Programming

Best Practices for Optimizing Java Code and Reducing Memory Usage

Java is a popular programming language that is widely used for developing complex applications. However, one of the common issues with Java programs is high memory usage, which can lead to performance issues and even crashes. Therefore, it is important to use memory-saving techniques to optimize Java code and reduce memory usage.

In this article, we will discuss some of the best practices and tips to save memory in Java.

Use primitive data types

int x = 42;      // use int instead of Integer
double d = 3.14; // use double instead of Double
boolean b = true; // use boolean instead of Boolean

By using primitive data types instead of their object wrappers, we can save memory by avoiding the overhead of object creation.

Avoid unnecessary object creation

String s = "Hello" + " World"; // use StringBuilder instead

This line of code creates a new string object for the concatenated string “Hello World”. Instead, we can use a StringBuilder to append the strings and avoid creating a new object for each concatenation:

StringBuilder sb = new StringBuilder();
sb.append("Hello");
sb.append(" World")…