Uploaded December 2024 | Updated September 2026, 1 week ago
#java #javatutorial #javacourse
This is a demonstration on how to enter user input into an empty array
#java #javatutorial #javacourse
This is a demonstration on how to enter user input into an empty array

![Selection in Pandas is easy! 🎯
#coding #python #programming
Selection in Pandas means pulling out specific data from a Series or DataFrame.
import pandas as pd
df = pd.read_csv(data.csv, index_col=Name)
pokemon = input(Enter a Pokemon name: )
try:
print(df.loc[pokemon])
except KeyError:
print(f{pokemon} not found) Selection in Pandas is easy! 🎯](https://i.ytimg.com/vi/aoNRYtVEhAM/mqdefault.jpg)

![Learn INTERFACES in 6 minutes! 📋
#java #javatutorial #javacourse
public class Main {
public static void main(String[] args) {
// Interface = A blueprint for a class that specifies a set of abstract methods
// that implementing classes MUST define.
// Supports multiple inheritance-like behavior.
Rabbit rabbit = new Rabbit();
Hawk hawk = new Hawk();
Fish fish = new Fish();
rabbit.flee();
hawk.hunt();
fish.flee();
fish.hunt();
}
}
public interface Prey {
void flee();
}
public interface Predator {
void hunt();
}
public class Rabbit implements Prey{
@Override
public void flee(){
System.out.println(*The rabbit is running away*);
}
}
public class Hawk implements Predator{
@Override
public void hunt(){
System.out.println(*The hawk is hunting*);
}
}
public class Fish implements Prey, Predator{
@Override
public void flee(){
System.out.println(*The fish is swimming away*);
}
@Override
public void hunt(){
System.out.println(*The fish is hunting*);
}
} Learn INTERFACES in 6 minutes! 📋](https://i.ytimg.com/vi/c2sTQk9opO8/mqdefault.jpg)

![Learn Java ARRAY OF OBJECTS in 5 minutes! 🗃️
#java #javatutorial #javacourse
public class Main {
public static void main(String[] args) {
Car[] cars = {new Car(Mustang, Red),
new Car(Corvette, Blue),
new Car(Charger, Yellow)};
for(Car car : cars){
car.color = black;
}
for(Car car : cars){
car.drive();
}
}
}
public class Car {
String model;
String color;
Car(String model, String color){
this.model = model;
this.color = color;
}
void drive(){
System.out.println(You drive the + this.color + + this.model);
}
} Learn Java ARRAY OF OBJECTS in 5 minutes! 🗃️](https://i.ytimg.com/vi/cMJeCs0n6BY/mqdefault.jpg)

![Write files using C programming in 5 minutes! ✍️
#coding #programming #cprogramming
// WRITE A FILE
FILE *pFile = fopen(output.txt, w);
char text[] = BOOTY BOOTY BOOTYnROCKIN EVERYWHERE!;
if(pFile NULL){
printf(Error opening filen);
return 1;
}
fprintf(pFile, %s, text);
printf(File was written successfully!n);
fclose(pFile);
return 0; Write files using C programming in 5 minutes! ✍️](https://i.ytimg.com/vi/d29sVpbM0kc/mqdefault.jpg)

![Structs in C are easy! 📦
#coding #programming #cprogramming
typedef struct{
char name[50];
int age;
float gpa;
bool isFullTime;
}Student;
void printStudent(Student student);
int main() {
Student student1 = {Spongebob, 30, 2.5, true};
Student student2 = {Patrick, 36, 1.0, false};
Student student3 = {Squidward, 48, 3.2, false};
Student student4 = {0};
strcpy(student4.name, Sandy);
student4.age = 27;
student4.gpa = 4.0;
student4.isFullTime = true;
printStudent(student1);
printStudent(student2);
printStudent(student3);
printStudent(student4);
return 0;
}
void printStudent(Student student){
printf(Name: %sn, student.name);
printf(Age: %dn, student.age);
printf(GPA: %.2fn, student.gpa);
printf(Full-time: %sn, (student.isFullTime) ? Yes : No);
printf(n);
} Structs in C are easy! 📦](https://i.ytimg.com/vi/e9OXqEPF-5M/mqdefault.jpg)
![How to READ FILES with Java in 8 minutes! 📖
#java #javatutorial #javacourse
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
public class Main {
public static void main(String[] args) {
// How to read a file using Java (3 popular options)
// BufferedReader + FileReader: Best for reading text files line-by-line
// FileInputStream: Best for binary files (e.g., images, audio files)
// RandomAccessFile: Best for read/write specific portions of a large file
String filePath = C:UsersUserDesktoptest.txt;
try(BufferedReader reader = new BufferedReader(new FileReader(filePath))){
String line;
while((line = reader.readLine()) != null){
System.out.println(line);
}
}
catch(FileNotFoundException e){
System.out.println(Could not locate file);
}
catch(IOException e){
System.out.println(Something went wrong);
}
}
} How to READ FILES with Java in 8 minutes! 📖](https://i.ytimg.com/vi/eHjbvgw4hsI/mqdefault.jpg)