What Happens When You Add a Double Value to a String

by

The result is a String object.

When you add a double value to a String in Java, the double value will be converted to its string representation and then concatenated to the existing String. This process is known as string concatenation.

For example:

java
double doubleValue = 10.5;
String stringValue = "The value is: " + doubleValue;

In this case, the doubleValue will be converted to its string representation (in this case, “10.5”), and then concatenated to the existing string “The value is:”. The resulting value of stringValue will be “The value is: 10.5”.