Gradle lifecycle

Gradle lifecycle consist of three phases: initialization, configuration, and execution:

1. During Initialization, Gradle decides which projects are to participate in the build.

2. During Configuration, task objects are assembled into an internal object model, usually called the DAG (for directed acyclic graph).

Let us do a simple hands on excercise followed by some questions to understand exceptions better. For theory and concetps of exceptions in Java. you can refer to the note introduction-to-exceptions-in-java. 

Exercise

Create a class MyClass and create three methods myMethod1(), Method2() and Method3().

Invoke Method2() from Method1() and Method3() from Method2().

A String is a sequence of characters (e.g. "Hello World").

A String is an object in java, and not a primitive. 

Creating Strings

We can create a String object in two ways:

1. Assigning a String literal to a String variable

   • e.g. String greeting = "Hello world!";

   • Here, "Hello world!" is a string literal.

Access modifiers are used to specify the accessibility or access levels of a type (class, interface) and its members (methods, variables and even constructors). There are three access modifiers and four access levels in Java. The three access modifiers are are private, protected and public. Four access levels (from most restricted to least restricted) are private, default (no modifier), protected and public. 

Looping constructs in Java are:

• For statement

• For-each statement

• While statement

• Do while statement

We will see for and for-each here. We will see while, do while, break and continue statements in next note. 

The for statement

Syntax of for loop is: