arraylist 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: arraylist string to string array
String[] arr = list.toArray(new String[list.size()]);
Example 3: arraylist items into string
String listString = String.join(", ", list); //Java 8 or later
Example 4: java string array to arraylist
new ArrayList( Arrays.asList( new String[]{"abc", "def"} ) );
Example 5: list of string to string array in java
list.toArray(new String[0]);