A blog about Java. Examples for Java design patterns, Java core examples, web frameworks.
What are Design Patterns? What is a Pattern? Patterns exist everywhere in the world. In culinary, art, medicine, law, mathematics, music, dancing and the list goes on. Genrally, a pattern is identified as a recurring arrangement created to solve some generalized problem. It is simply a solution outline. That solution outline can be used over and over … Read more
A stack trace is a list of method calls arranged in such a way that the method at which an exception was thrown will be at the top followed by the caller to that method and so on till the main method of the program. We can print a stack trace to the console by … Read more
Do you Know The Strategy Design Pattern? What is Strategy Design Pattern? Do you use Strategies? We all have dealt with strategies in certain moments of our life. In more technical words strategy is a set of planned actions designed to achieve a specific goal. Simply, you try out many strategies when a final exam … Read more
Java 9 introduced a new interface called MultiResolutionImage (JEP 251) to encapsulate a set of images with different resolutions into a single multi-resolution image. The APIs related to multi-resolution images are available under java.awt.image package and helps us to programmatically: Get all variants of a particular image. Get an image specific to the resolution required based … Read more
The java.lang.Process class provides methods to get input or output from a process, wait for process to complete, check exit status or kill the process. From Java 7 onwards, the process streams could be redirected to files. In Java 9, certain enhancements(JEP 102) were done to the Process API and a new interface called ProcessHandle … Read more
In Java 8, the implementation of type-checking at compiler level was based on Speculative Attribution. In Speculative Attribution, the same tree can be type-checked against multiple targets at runtime. This is particularly used in target typing for lambda expressions, resolving diamond expressions for generics, etc. To understand more about target typing in lambda expressions, we … Read more
