Java

System.out.println(this.girlfriend);
System.out.println(this.girlfriend.name);


Exception in thread "main" java.lang.NullPointerException
               at Human.gfInfo(Human.java:103)
               at Main.myInfo(Main.java:58)
               at Main.main(Main.java:23)

C

printf("%s", girlfriend.age);

-3857492




Javascript

console.log(girlfriend);
console.log(girlfriend.age);


undefined
TypeError: Cannot read property 'age' of undefined