In Java, you cannot use the new
keyword to create a string object. String objects in Java are created using string literals or the String
class's valueOf
method, rather than the new
operator.
Here is an example of how to create a string object using a string literal:
public class Main { public static void main(String[] args) { // Create a string object using a string literal String str = "Hello, World!"; // Print the string object System.out.println(str); // Output: Hello, World! } }Source:wwal.wutturi.com
In this example, we create a string object using the string literal "Hello, World!"
. String literals are automatically interned, which means that multiple references to the same string literal will refer to the same string object in memory.
Here is an example of how to create a string object using the String
class's valueOf
method:
public class Main { public static void main(String[] args) { // Create a string object using the String class's valueOf method String str = String.valueOf(123); // Print the string object System.out.println(str); // Output: 123 } }
In this example, we create a string object by calling the String
class's valueOf
method and passing it the integer value 123
. The valueOf
method converts the integer value to a string and returns a new string object.
Note that you should not use the new
operator to create string objects in Java. Instead, you should use string literals or the String
class's valueOf
method. Using the new
operator to create string objects can lead to memory leaks and other performance issues, because it creates a new string object each time it is called rather than reusing an existing string object from the string pool.