How-to articles, tricks, and solutions about STRING-COMPARISON

Check whether a String is not Null and not Empty

To check if a string is not null and not empty in Java, you can use the length() method of the java.lang.String class to check if the string is empty, and the != operator to check if the string is not null. Here is an example of how you can do this:

java string conditional-statements string-comparison boolean-logic

If statement with String comparison fails

If an if statement with a string comparison fails in Java, it usually means that the strings being compared are not equal.

java string-comparison multithreading if-statement