Replace the code in the run() method with the code you want the thread to run. Make a new class object and invoke the start() function on it. Let us look at an example to understand how to create a thread in Java. We will create a new category called ‘MyThread’ that will exten...
@Test public void verifyMethodInvokationTest() { EmployeeService mock =PowerMockito.mock(EmployeeService.class); EmployeeController employeeController = new EmployeeController(mock); Employee employee = new Employee(); employeeController.saveEmployee(employee); //Verifying that controller did call the //...
Interested in becoming a Java Developer? Here is everything you need to know about the process, including where to start your journey.
In the book Java For Testers, I teach Java slightly differently to make it easier to learn. Let me explain how. When you learn Java, one of the first things you traditionally learn is how to create a ‘main’ method. That makes sense right? After all: You’re learning how to write ...
Here’s a simple example: List<Integer>numbers=Arrays.asList(3,2,1);Collections.sort(numbers);System.out.println(numbers);// Output:// [1, 2, 3] Java Copy In this example, we have a list of integers that we want to sort in ascending order. We use theCollections.sort()method to ...
What is immutable class? Rules to create immutable class Advantages of immutable objects Disadvantages of immutable objectsWhat is immutable class: A class is immutable if no method of the class can mutate its objects. For example, the String class is immutable. An immutable object cannot be ...
In most cases, we will do object creation using the above methods but there are more methods to create an object. Example: Using newInstance() method of Class class In the program given below, we created an object using anewInstance()method of aClassclass. In this method instead of thenew...
How to make an app - Step by Step Step 1: Unearth a winning app idea Step 2: Define your target audience Step 3: Craft a compelling value proposition Step 4: Design a user-friendly app Step 5: Choose the right development path Step 6: Create a Minimum Viable Product (MVP) Step 7...
Call a static Method in Another Class in Java It is another scenario where we are calling a static method of another class. In the case of a static method, we don’t need to create an object to call the method. We can call the static method by using the class name as we did in ...
We assume that the “FirstClass” has a method named “Hello()” and we have to invoke it in the “SecondClass”. To do that, first, we need to create an object of “FirstClass” in the main method of the “SecondClass”.