ternary operator in java for null check

In Java, you can use the ternary operator (also known as the conditional operator) to perform a null check and return a default value if the operand is null.

Here's an example of how to use the ternary operator to perform a null check in Java:

String str = null;
String defaultStr = "Default";

String result = (str != null) ? str : defaultStr;

In this example, the ternary operator checks whether the value of str is null. If the condition (str != null) is true, the value of str is returned. If the condition is false, the value of defaultStr is returned.

The ternary operator can be used as a shorter alternative to an if-else statement:

String result;
if (str != null) {
    result = str;
} else {
    result = defaultStr;
}

You can find more information about the ternary operator and how to use it in Java in the Java documentation.