Method min

src/main/java/edu/princeton/cs/algs4/ST.java:190–193

Returns the smallest key in this symbol table. @return the smallest key in this symbol table @throws NoSuchElementException if this symbol table is empty

()

     * @throws NoSuchElementException if this symbol table is empty
     */
    public Key min() {
        if (isEmpty()) throw new NoSuchElementException("calls min() with empty symbol table");
        return st.firstKey();
    }

    /**
     * Returns the largest key in this symbol table.