java - String constructor to handle byte array producing weird result -

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• what character encoding , why should bother it 3 answers

i using implicit string constructor handle byte array..but results weird. have more proper output..? appreciated. here code..

    byte[] arr = { 23, 34, 20, 65, 88, 95 };      string s1 = new string(arr);     system.out.println("first: "+s1);      string s2 = new string(arr, 1, 3);     system.out.println("second: "+s2); 

it prints:

first: ?"?ax_

second: ?ax

the string() constructor using interpreting bytes in array according default character set java environment. can differ.

if have specific character encoding want use, "us-ascii" or "utf-8", should specify character set using different constructor, such as: string(byte[] bytes, string charsetname).