Setter & getter in JAVA, please help me to solve this bullshit

Question

import java.util.Scanner;

class Main {

public static void main(String[] args) {
Scanner read = new Scanner(System.in);
String name = read.next();
int age = read.nextInt();
Student student = new Student();
student.name = name;
student.setAge(age);

//set the age via Setter

System.out.println("Name: " + student.name);
System.out.println("Age: " + student.getAge());
}
}

class Student {
public String name;
private int age;

public int getAge() {
return age;
}

public void setAge(int newAge) {
if (newAge < 0) {
System.out.println("Invalid age");
this.age = 0;
} else {
this.age = age;
}
}
}

I cant solve the final code in getter and setter, because the compiler always shows NO OUTPUT.
If you have a solution, please sent it

Answer 1

Ayanokoji Kiyotaka your argument is newAge. why are you using
this.age = age; //????
shouldn't this be
this.age = newAge;

public void setAge(int newAge) {
if (newAge < 0) {
System.out.println("Invalid age");
this.age = 0;
} else {
this.age = newAge;
}
}

Answer 2

Ayanokoji Kiyotaka
it's ok to use + to concatenate strings and ints inside println. But always remember that numbers are implicitly converted to strings if you have a string in the + chain.
so if you have:

int a = 20;
int b = 24;
System.out.println("Total = " + a + b);

will print out:
Total = 2024

while:
System.out.println( a + b);

will print out:
44

Answer 3

When using this.age you have to think of it as a pointer.
private int age <<<
public void setAge(int age){<<<
this.age = age;<<<
}
Theyre all lowercased

Answer 4

import java.util.Scanner;

class Main {

public static void main(String[] args) {
Scanner read = new Scanner(System.in);
String name = read.next();
int age = read.nextInt();
Student student = new Student();
student.setName(name);
student.setAge(age);

//set the age via Setter

System.out.println("Name: " + student.getName());
System.out.println("Age: " + student.getAge());
}
}

class Student {
public String name;
private int age;

public int getAge() {
return age;
}
public String getName() {
return name;
}
public void setName(String name){
this.name= name;

}
public void setAge(int age) {
if (this.age < 0) {
System.out.println("Invalid age");

} else {
this.age = age;
}
}