what does this. mean in java code example

Example 1: java meaning

if (you.mean.equals("java programming language")) {
  System.out.println("Java is a class-based, object-oriented programming language");
} else if (you.mean.equals("java coffee")) {
  System.out.print("the term java comes from an island named 'java', a famous coffee source druing the 1600s ");
}

Example 2: how to use the this keyword in java

class Other{
    public double num;
    public Other(int num){
        this.num = num;
        System.out.println(num);
      	//print 5 to the console
    }
}

class scratch{
    public static void main(String[] args) {
        Other method = new Other(5);
        System.out.println(method.num);
      	//prints 5.0 to the console
    }
}

Example 3: java what is the meanning of

E - Element
K - Key
N - Number
T - Type
V - Value
S,U,V etc. - 2nd, 3rd, 4th types

Example 4: this obj java meaning

public class Point {
    public int x = 0;
    public int y = 0;
        
    //constructor
    public Point(int a, int b) {
        x = a;
        y = b;
    }
}