how to make a functional array?

Question

String[] kelas = {" rizki" ," rifka"," putri"," sahal"};
    
    System.out.println(Arrays.toString(kelas));
    
    System.out.println( kelas[0]);
    for ( int i=0; 0 <= kelas.length; i++)
     {
        System.out.println("teman ke-"+1+ " adalah" + kelas[i]);
    }

hello i am try to make an array that will end like this :

[rizki,  rifka, putri, sahal]
rizki
teman ke-1 adalahrizki
teman ke-2 adalah rifka
teman ke-3 adalahputri
teman ke-4 adalahsahal

but in the end it said this

[rizki,  rifka, putri, sahal]
rizki
teman ke-1 adalahrizki
teman ke-1 adalah rifka
teman ke-1 adalahputri
teman ke-1 adalahsahal
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 4
   at javaapplication7.JavaApplication7.main(JavaApplication7.java:34)
C:\Users\Rizki Sultan Afian\AppData\Local\NetBeans\Cache\8.2\executor-snippets\run.xml:53:Java  
returned: 1
BUILD FAILED (total time: 8 seconds)

and this is the image:the array

i still dont understand java but i need to finish it for homework.

In the end it should be like `for(int i=0; i < kelas.length; i++)` — PIG208, Dec 04 '20 at 10:06
thank you but the result is teman ke-1....,teman ke-1....,teman ke-1... how do i make it so it become teman ke-1...., teman ke-2..... , etc? — Rizki Sultan Afian, Dec 04 '20 at 10:21
That's your homework. Why didn't you include the code as text in this question so that I could have looked at it? Links are not for code. — NomadMaker, Dec 04 '20 at 10:30
i may or may not pay enough attention at the class , but i am sure my teacher told me to make it from scratch. i already missed the original deadline and i didn't hear what should i do from the array. the teacher didn't attach the code to the assignment either. i am really sorry — Rizki Sultan Afian, Dec 04 '20 at 10:44
i already ask my classmate but she just send me the image of her work. that the only thing i know so far about the assignment. — Rizki Sultan Afian, Dec 04 '20 at 10:45
it is okay, i found the answer. Thank you all for helping me — Rizki Sultan Afian, Dec 04 '20 at 11:42

score 2 · Accepted Answer · answered Dec 04 '20 at 10:04

2

This line is wrong:

for ( int i=0; 0 <= kelas.length; i++)

Should be:

for ( int i=0; i < kelas.length; i++)

answered Dec 04 '20 at 10:04

Jesper

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but i didn't become teman ke-1... , teman ke-2.... , etc. instead it become teman ke-1.... , teman ke-1.... , etc. how do i fix this? – Rizki Sultan Afian Dec 04 '20 at 10:24
Isn't that your homework to do? – NomadMaker Dec 04 '20 at 10:29
Well, `"teman ke-"+1+ " adalah"...` in the `System.out.printf` is why you get "...ke-1..." printed all the time. Now, what do you suppose you should do about that? – Kevin Anderson Dec 04 '20 at 10:35
change it into something else ? i didn't pay attention in the class. – Rizki Sultan Afian Dec 04 '20 at 10:48
@RizkiSultanAfian This is not difficult. Think about it. Hint: Replace the `+ 1 +` by something else. – Jesper Dec 04 '20 at 11:06

how to make a functional array?

1 Answers1