Converting char array to String. Java

Question

Int a[] = {1,2};

String s = a.toString(); //what's going on here.

My output is

I@something for integer array. C@something for char array.

How to I correctly convert any array into string.

How do you want to convert? Do you want to merge and convertor do you want to convert it individually? — Alpit Anand, Apr 24 '20 at 08:31
Does this answer your question? [How to convert a char to a String?](https://stackoverflow.com/questions/8172420/how-to-convert-a-char-to-a-string) — Alpit Anand, Apr 24 '20 at 08:32
Please read **[Convert Character Array To String In Java](https://www.tutorialcup.com/java/convert-char-array-to-string-in-java.htm)** this will help you answer your question — Rahul Gupta, May 14 '21 at 17:31

Dheeraj Joshi · Answer 1 · 2020-04-24T11:47:24.630

1

You can use Arrays.toString(array)

Like for example :

Int a[] = {1,2};

System.out.println("Array as String:"+Arrays.toString(array))

It will output:

Array as String:[1,2]

edited Apr 24 '20 at 11:47

answered Apr 24 '20 at 08:35

Dheeraj Joshi

1,522
14
23

What does string s store in itself.? When I print s it only gives me a string which is = I@4517d9a3 if array is integer. If array is of character then my output for string s is C@4517d9a3, similarly for double array, I get string a output as D@4517d9a3 – Dev Shukla Apr 24 '20 at 10:29
@DevShukla it will give you the address of the array – Dheeraj Joshi Apr 24 '20 at 11:57

score 0 · Accepted Answer · answered Apr 24 '20 at 08:31

0

Have you tried using char[] array? If it suits your need this would help you:

char[] chars = {'1', 'a'};

    String string = new String(chars);
    System.out.println(string);

Output: 1a

answered Apr 24 '20 at 08:31

developer1

527
4
27

Thanks!, well this helped me. But now only query that left is when i try String s = a.toString(); What does string s store in itself.? When I print value of s it only gives me a string which is = I@4517d9a3 if array is integer. If array is of character then my output for string s is C@4517d9a3, similarly for double array, I get string a output as D@4517d9a3 what are these codes. – Dev Shukla Apr 24 '20 at 10:54

score 0 · Answer 3 · answered Apr 24 '20 at 08:53

You can create your own implementation for learning what is going on background.

int a[] = {1,2};
printArray(a);

public void printArray(int[] a) {
    System.out.print("Array={");
    for(int singleElement : a) {
        print(singleElement);
    }
    System.out.println("}");
}

Converting char array to String. Java

3 Answers3