JAVA

how to initialise array in java without size

List<Type> arrayList = new ArrayList<>();

how to increase the size of array in java

// Use this function
public void increaseSize() {
   String[] temp = new String[original.length + 1];
   
   for (int i = 0; i < original.length; i++){
      temp[i] = original[i];
   }
   original = temp;
}

how to create an array without knowing the size java

String[] array = scan.nextLine().split(" ");

how to make a fixed size array in java

dataType[] arrayRefVar = new dataType[arraySize];