Java - Convert integer to string [duplicate]

Converting an integer to a string in Java is a common task, and there are several ways to do it. If you're wondering how to get it done, here are some simple and effective methods:

1. Using String.valueOf(int) (Recommended)

This is one of the most commonly used methods to convert an integer to a string. It’s straightforward and easy to understand:

int number = 123;  

String str = String.valueOf(number);  

System.out.println(str);  // Output: "123"

2. Using Integer.toString(int)

Another popular way is to use the Integer.toString() method:

int number = 456;  

String str = Integer.toString(number);  

System.out.println(str);  // Output: "456"

3. Using String Concatenation (Quick Trick)

If you're in a hurry, you can also convert an integer to a string by concatenating it with an empty string:

int number = 789;  

String str = number + "";  

System.out.println(str);  // Output: "789"

Which Method to Use?

• String.valueOf() is often recommended because it works for primitive types and handles null safely.
  
• Integer.toString() is equally effective but specific to integers.
  
• String concatenation is quick but less readable for some developers.