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In-depth guide to Java 8 Stream API java2blog.com/java-8-stream/

Notion

Here is the answer to "Can We have try without Catch block in Java" java2blog.com/can-we-have-tr… Follow @java2blog for more such polls.

Can We Have Try without Catch Block in Java

Break Statement in Java with examples java2blog.com/java-break-sta…

Prompt

You can find answer over here: java2blog.com/java-interview…

class A { synchronized void m1() { System.out.println("In m1 A"); } void m2() { System.out.println("In m2 A"); } } There are two threads T1 and T2. T1 is accessing m1 method. Will T2 be able to access m2 method on the same instance at the same time?

That's a wrap! Please follow @java2blog for more such content.

Here is an article on lambda expressions to understand it better. java2blog.com/lambda-express…

Now, let's say we are given a list of employee objects listOfEmployees and we need to obtain a list of the names of employees. Here, we will use the map() method of the Stream API that takes a Function as a parameter.

Let's use this method to write the Function functional interface.

Step 3:  Write the implementation similar to a method which takes String as input and returns nothing. Please note that we need to use curly braces {} and a return statement when we want to execute multiple statements.

Step 2 : Put Array Operator

Step 1: Go to the source code functional interface for which you need to write lambda expressions and copy the parameters of its abstract method. For example: Let's say you want to write lambda expression for Consumer.

How to write a lambda expression in a way that you will never forget. A Thread 🧵

You can call Predicate as: boolean b = stringPredicate.test("Hello World!") // returns true That's a wrap! Follow @java2blog for more such content.