importjava.util.*;publicclassJavaExample{publicstaticvoidmain(Stringargs[]){LinkedHashSet<String>set=newLinkedHashSet<>();set.add("Paul");set.add("Ram");set.add("Aaron");set.add("Leo");set.add("Becky");Iterator<String>it=set.iterator();while(it.hasNext()){System.out.println(it.nex...
An interface which is declared inside another interface or class is callednestedinterface. They are also known as inner interface. For example Entry interface in collections framework is declared inside Map interface, that’s why we don’ use it directly, rather we use it like this:Map.Entry. ...
In this tutorial, we shall learn the intuition and realization of encapsulation in Java language with example programs. The below diagram gives an idea about Encapsulation in Java Points to be made from the above diagram are Variables (in the example: height, weight, bmi) are declared private,...
CompletableFuture.anyOf() as the name suggests, returns a new CompletableFuture which is completed when any of the given CompletableFutures complete, with the same result. Consider the following example - CompletableFuture<String> future1 = CompletableFuture.supplyAsync(() -> { try { TimeUnit.SE...
After you build either server-side or client-side classes with thejavaccompiler, if any of those classes will need to be dynamically downloaded by other Java virtual machines, you must ensure that their class files are placed in a network-accessible location. In this example, for Solaris or ...
Running the Example Programs A Note About Security The server and client programs run with a security manager installed. When you run either program, you need to specify a security policy file so that the code is granted the security permissions it needs to run. Here is an example policy fil...
Documentation comments start with/**and end with*/. By convention, each line of a doc comment begins with a*, as shown in the following example, but this is optional. Any leading spacing and the*on each line are ignored. Within the doc comment, lines beginning with@are interpreted as sp...
Example: String greeting = "Hello, world!"; // String literal String path = "C:\\Program Files\\Java\\"; // String literal with backslashes String unicodeString = "\u03A9\u03B1\u03B2\u03B3"; // String literal with Unicode characters (Ωαβγ) ...
All the code in this example does is create a thread that prints a string to the standard output stream. The main thread waits for created (child) thread to complete by calling join(). Directly manipulating threads this way is fine for simple examples, but with concurrent programming, such ...
For example: - Signed by "CN="Signer"" Digest algorithm: SHA-1 (disabled) Signature algorithm: SHA1withRSA (disabled), 2048-bit key WARNING: The jar will be treated as unsigned, because it is signed with a weak algorithm that is now disabled by the security property: jdk.jar.disabledAlg...