array string to string java code example

Example 1: java arraylist to string

ArrayList<String> al = new ArrayList<String>();
      al.add("Hello");
      al.add("Wor");
      al.add("ld");
      StringBuffer sb = new StringBuffer();
      
      for (String s : al) {
         sb.append(s);
         sb.append(" ");
      }
      String str = sb.toString();
      System.out.println(str);//"Hello wor ld"

Example 2: array to string java

char[] charArray = new char[] {'b','u','z','z'};

String answer = new String(charArray);

Example 3: java string array to one string

public class ArrayOfStrings {
   public static void main(String args[]) {
      String stringArray[] = {"Hello ", " how", " are", " you", " welcome", " to", " Tutorialspoint"};
      StringBuffer sb = new StringBuffer();
      for(int i = 0; i < stringArray.length; i++) {
         sb.append(stringArray[i]);
      }
      String str = sb.toString();
      System.out.println(str);
   }
}