java code run online

1// OnlineGdb is literally the best.

1interface Foo141 
2{ 
3    int k = 0; /* Line 3 */
4} 
5public class Test141 implements Foo141 
6{
7    public static void main(String args[]) 
8    {
9        int i; 
10        Test141 test141 = new Test141(); 
11        i = test141.k; /* Line 11 */
12        i = Test141.k; 
13        i = Foo141.k; 
14    } 
15}

1Compile on w3 schools: ttps://www.w3schools.com/java/java_compiler.asp

1Repl.it Compiler: click source buttton to go to the website
2Pros: You can add files, do javafx and jswing.

1import java.io.File;
2import java.io.IOException;
3import java.util.Scanner;
4import javax.sound.sampled.*;
5
6public class Main {
7
8	public static void main(String[] args) throws UnsupportedAudioFileException, IOException, LineUnavailableException{
9		
10		Scanner scanner = new Scanner(System.in);
11		
12		File file = new File("Level_Up.wav");
13		AudioInputStream audioStream = AudioSystem.getAudioInputStream(file);
14		Clip clip = AudioSystem.getClip();
15		clip.open(audioStream);
16		
17		String response = "";
18			
19		while(!response.equals("Q")) {
20			System.out.println("P = play, S = Stop, R = Reset, Q = Quit");
21			System.out.print("Enter your choice: ");
22			
23			response = scanner.next();
24			response = response.toUpperCase();
25			
26			switch(response) {
27				case ("P"): clip.start();
28				break;
29				case ("S"): clip.stop();
30				break;
31				case ("R"): clip.setMicrosecondPosition(0);
32				break;
33				case ("Q"): clip.close();
34				break;
35				default: System.out.println("Not a valid response");
36			}
37		 }
38		System.out.println("Byeeee!");	
39	}
40}

1import java.util.Scanner;
2public class exercise30 {
3public static void main( String[] args ) {
4Scanner keyboard = new Scanner(System.in); 
5int total = 0;
6boolean current;«
7System.out.print("Type in a bunch of values and I'll add them up. ");
8System.out.println("I'll stop when you type a zero.");
9while (total += current){
10System.out.print("Value: ");
11current = keyboard.nextInt();
12
13System.out.println("The total so far is: " + total);
14} while ( current != 0 );
15System.out.println("The final total is: " + total);
16} }