Please explain the code, unable to understand what test(3).x means in the main method
class Test {
int x=0;
static int y=1;
Test(){
this.y++;
this.x+=++x;
}
Test(int x){
this();
System.out.println(x+this.x+this.y);
}
}
public class MyClass {
public static void main(String args[]) {
System.out.println(new Test(3).x+" "+new Test(4).y);
}
}
new Test(3).x can be rewritten in this form:
Test myObject = new Test(3);
myObject.x
which you might be more familiar with.
All it does is create a Test object and access that object's x field.
The program prints
6
8
1 3
The first constructor call makes y be 2, and this.x be 1. x+this.x+this.y, which is 3+1+2=6, is then printed. The second constructor call makes y be 3, and this.x be 1. x+this.x+this.y, which is 4+1+3=8, is then printed.
Now the whole expression new Test(3).x+" "+new Test(4).y is evaluated. new Test(3).x is 1, and Test.y is 3. These two values are then printed.
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