How to delete folder with all files and sub folders in it using java 8. We can use java 8 Stream to delete folder recursively  Files.walk(rootPath, FileVisitOption.FOLLOW_LINKS) .sorted(Comparator.reverseOrder())... read more ?

How to convert Integer Set to primitive int array. By Using java 8 Streams we can convert Set to array. set.stream().mapToInt(Number::intValue).toArray(); Lets see an example java program on... read more ?

Initializing a boolean variable : boolean b=true; In some cases we need to initialize all values of boolean array with true or false. In such cases we can... read more ?

We can initialize set while defining by passing values to constructor. For example to initialize HashSet we can use Arrays.asList(value1,value2). Set<Integer> hashset = new HashSet<>(Arrays.asList(12, 13)); #1: Java... read more ?

1.Java Example program to find missing numbers in an array. Java Program to find missing numbers in an array 2. Java interview Example program to find second maximum... read more ?

In some cases we may need to run two java programs simultaneously and need to observe the ouput of two progarsms. In such cases we need to run... read more ?

Logging is very important part of programming. Logging helps programmer to understand process flow and identify the problems where actually occurred. Log4J will be configured externally using properties... read more ?