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The This keyword in Java is a very important keyword. There are two main uses of this keyword in Java, first
public class person{
Private String username;
private int age;
Public person (String Username,int age) {
This.username = Username;
This.age = age;
}
}
Here the This keyword represents the object itself, that is, the property inside the username, the parameter username value to the property inside the username
This.age = The role of age is also the value of the parameter age to the age of the attribute
Let's look at one more example
public class person{
Private String username;
private int age;
Person () {
SYSTEM.OUT.PRINTLN ("Non-parametric construction method");
}
Public person (String Username,int age) {
This ();
This.age = age;
}
}
This is the second use of the person.
This invokes an argument-free construction method
This line of code will be executed without a reference to the value.
The second usage of this must be used in the first line.
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