Understanding Null, Empty List, and Empty Array in Java
As a programmer, it’s essential to differentiate between null, empty lists, and empty arrays when working in Java. Here’s a quick breakdown from my experience:
- Null: It means the reference points to nothing. Accessing it will lead to a NullPointerException. - Empty List: A list that has been initialized but contains no elements, for example:
List<String> list = new ArrayList<>();
- Empty Array: An array that has been initialized with a specific length but contains no values:
String[] array = new String[0];
To avoid confusion, remember that an empty list and an empty array are still objects, hence they can be instantiated, while null is not.
When converting between these types, try to ensure that you're handling potential null values properly to avoid exceptions. It's advisable to always check and fill lists or arrays as needed.
Keep these distinctions in mind to avoid pitfalls in your code! 🚀
Understanding Null, Empty List, and Empty Array in Java
As a programmer, it’s essential to differentiate between null, empty lists, and empty arrays when working in Java. Here’s a quick breakdown from my experience:
- Null: It means the reference points to nothing. Accessing it will lead to a NullPointerException. - Empty List: A list that has been initialized but contains no elements, for example:
List<String> list = new ArrayList<>();
- Empty Array: An array that has been initialized with a specific length but contains no values:
String[] array = new String[0];
To avoid confusion, remember that an empty list and an empty array are still objects, hence they can be instantiated, while null is not.
When converting between these types, try to ensure that you're handling potential null values properly to avoid exceptions. It's advisable to always check and fill lists or arrays as needed.
Keep these distinctions in mind to avoid pitfalls in your code! 🚀
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That growth environment will include rising inflation and interest rates. Those upward shifts naturally accompany healthy growth periods as the demand for resources, products and services rise. Importantly, the Federal Reserve has laid out the rationale for not interfering with that natural growth transition.It's not exactly a fad, but there is a widespread willingness to pay up for a growth story. Classic fundamental analysis takes a back seat. Even negative earnings are ignored. In fact, positive earnings seem to be a limiting measure, producing the question, "Is that all you've got?" The preference is a vision of untold riches when the exciting story plays out as expected.
Spiking bond yields driving sharp losses in tech stocks
A spike in interest rates since the start of the year has accelerated a rotation out of high-growth technology stocks and into value stocks poised to benefit from a reopening of the economy. The Nasdaq has fallen more than 10% over the past month as the Dow has soared to record highs, with a spike in the 10-year US Treasury yield acting as the main catalyst. It recently surged to a cycle high of more than 1.60% after starting the year below 1%. But according to Jim Paulsen, the Leuthold Group's chief investment strategist, rising interest rates do not represent a long-term threat to the stock market. Paulsen expects the 10-year yield to cross 2% by the end of the year.
A spike in interest rates and its impact on the stock market depends on the economic backdrop, according to Paulsen. Rising interest rates amid a strengthening economy "may prove no challenge at all for stocks," Paulsen said.
