String remove duplicate in java

Java remove duplicates

import java.util.*;

public class RemoveDuplicatesFromArrayList {

    public static void main(String[] args) {
        List<Integer> numbers = Arrays.asList(1,2,2,2,3,5);

        System.out.println(numbers);

        Set<Integer> hashSet = new LinkedHashSet(numbers);
        ArrayList<Integer> removedDuplicates = new ArrayList(hashSet);

        System.out.println(removedDuplicates);
    }
}

Source: devqa.io

String remove duplicate in java

String str1 = "ABCDABCD";
String result1 = "";

for (int a = 0; a <= str1.length()-1; a++) {
if (result1.contains("" + str1.charAt(a))) { 
// charAt methodda you provide index number ve sana character olarak donuyor,
// If the string result does not contains str.CharAt(i), 
// then we concate it to the result. if it does we will not
   continue;
}
result1 += str1.charAt(a);
}
System.out.println(result1);

Similar codes

0 vote106 views2 answers
Finding the ASCII value of a Character in java
Java
0 vote110 views1 answer
Android java change text value
Java
1 vote102 views1 answer
How to check if string is double or not in java
Java
0 vote92 views1 answer
Ecludis
Java
1 vote104 views1 answer
Initialize applet in java
Java
0 vote56 views1 answer
Insert native query in jpa
Java
4 votes111 views1 answer
Java length of matrix
Java
14 votes92 views2 answers
Why we use static in java
Java
0 vote95 views1 answer
Java cos'è jvm
Java
0 vote111 views1 answer
111111000
Java