打印没有重复的字符元素

Question

i have this char array

char[] c = new char[]{'h','e','l','l','o','w','o','r','l','d';

i would like to look for duplicate elements in the array and print the elements in the array only once like so:

h,e,l,o,w,r,d

i tried with this code

for (int j = 0; j < c.length; j++) {

                    if (c[j] == c[j]) {

                        System.out.println("Duplicate");

                    } }

how can i achieve this?

Answer 1

Try it using Java 8: Arrays.asList(c).stream().distinct().collect(Collectors.toList()); to get the array back try: Arrays.asList(c).stream().distinct().toArray(size -> new Char[size]); Its all untested so Plesse let me know if these is something mit working. For printing add .foreach(System.out::println)