Java Array Output Confusing

Question

Taken from this site: https://www.journaldev.com/770/string-byte-array-java

package com.journaldev.util;

public class ByteArrayToString {

    public static void main(String[] args) {
        byte[] byteArray = { 'P', 'A', 'N', 'K', 'A', 'J' };
        byte[] byteArray1 = { 80, 65, 78, 75, 65, 74 };

        String str = new String(byteArray);
        String str1 = new String(byteArray1);

        System.out.println(str);
        System.out.println(str1);
    }
}

Why is the output:

PANKAJ

PANKAJ

I can't see how it isn't:

PANKAJ

806578756574

The string constructor takes in an array of bytes and interprets them as characters. The byte 80 represents the character 'P', etc. — khelwood
– khelwood, Commented May 11, 2018 at 20:51
ASCII codes are used under the hood when you convert the byte array to string — Rishikesh Dhokare
– Rishikesh Dhokare, Commented May 11, 2018 at 20:51
I had an inkling that was the case. Thank you for helping me see how to identify it as such. — John Doe
– John Doe, Commented May 11, 2018 at 20:52

Giancarlo Benítez · Accepted Answer · 2018-05-11 21:14:56Z

1

byte[] bytes constructor will parse the data contained, as @khelwood said it comments, the number are the ASCII representation of the letter so 80 represents a 'p' character.

if you want your output as you want, you should use

String[] srtArray = {"P","A"...}
String[] srtArray = {"80","65"...}

In the case of { 'P', 'A'...}, they are already encoded but number will be converted since they are stated as numbers and not string. "80" is not the same as 80.

edited May 11, 2018 at 21:14

answered May 11, 2018 at 21:09

Giancarlo Benítez

4381 gold badge4 silver badges19 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Brad Larson · Accepted Answer · 2018-05-22 18:24:57Z

0

Try this code:

public class ByteArrayToString {
  public static void main(String[] args) {
        byte[] byteArray = { 'P', 'A', 'N', 'K', 'A', 'J' };
        byte[] byteArray1 = { 80, 65, 78, 75, 65, 74 };

        String str = new String(byteArray);
        String str1 = new String(byteArray1);

        System.out.println(str);
        for (byte b : byteArray1) {
            System.out.print(b);
        }
        //System.out.println(str1);
    }

} Program output

edited May 22, 2018 at 18:24

Brad Larson

170k45 gold badges401 silver badges574 bronze badges

answered May 11, 2018 at 21:33

Anil Patel

111 bronze badge

1 Comment

Zabuzard Over a year ago

Usually code only answers are discouraged. Instead, post an in-depth explanation alongside.

Collectives™ on Stack Overflow

Java Array Output Confusing

2 Answers 2

Comments

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related