Write a java program to remove Duplicate Characters in String
Write a Program which removes duplicate characters from the string. Your program should read a sentence (string) as input from user and return a string removing duplicate characters. Retain the first occurance of the duplicate character. Assume the characters are case – sensitive.
Input and Output Format:
Input consists of a string with maximum size of 100 characters.
Output consists of a single string.
Refer sample output for formatting specifications.
Sample Input 1:
hi this is sample test
Sample Output 1:
hi tsample
Sample Input 2:
ABC DEF
Sample Output 2:
ABC DEF
Java program to remove Duplicate Characters in String.
package testCases; import java.util.Iterator; import java.util.LinkedHashSet; import java.util.Scanner; public class MainJava { public static void main(String[] args) { Scanner sc = new Scanner(System.in); String s1 = sc.nextLine(); getvalues(s1); } public static void getvalues(String s1) { char a[] = s1.toCharArray(); StringBuffer sb = new StringBuffer(); LinkedHashSet<Character> hs = new LinkedHashSet<Character>(); for (int i = 0; i < a.length; i++) { hs.add(a[i]); } Iterator<Character> itr = hs.iterator(); while (itr.hasNext()) { char o = itr.next(); if (o != ' ') ; { sb.append(o); } } System.out.println(sb); } }