Java Vector isEmpty() Method24 Mar 2025 | 2 min read The isEmpty() method of Java Vector class is used to check if this vector has no components. It returns true if the vector is empty, otherwise returns false. SyntaxFollowing is the declaration of isEmpty() method: ParameterThis method does not accept any parameter. ReturnThe isEmpty() method returns true if and only if this vector has no components, otherwise returns false. ExceptionsNA Compatibility VersionJava 1.2 and above Example 1Output: Vector: [Java, Ruby, Android, Python] Is the Vector empty? = false Vector after clear(): [] Is the Vector empty? = true Example 2Output: Vector: [] Is the Vector empty? = true Example 3Output: Vector isEmpty() before? false Vector isEmpty() after ? true Next TopicJava Vector |
Java Method The elements() method of Java Vector class used to get an enumeration of the elements of the vector which is in use. The returned enumeration object will generate all items in this vector at the same location. Syntax: Following is the declaration of elements() method: public...
2 min read
Java Method The toString() method of Java Vector class is used to get a string representation of the vector. It contains the string representation of each element. Syntax Following is the declaration of toString() method: public String toString() Parameter This method does not accept any parameter. Return The toString() method returns a...
2 min read
Java Method The containsAll() method of Java Vector class is used to check the vector which is in use contains all of the elements in the specified Collection or not. It returns true if this vector contains all of the elements in the Collection, otherwise...
3 min read
Java Method The hashCode() method of Java Vector class is used to get the hashcode value for the vector which is in use. Syntax: Following is the declaration of hashCode() method: public int hashCode() Parameter: This method does not accept any parameter. Returns: The hashCode() method returns the hash code value for...
2 min read
Java Method The setSize() method of Java Vector class is used to set the size of a vector. If the new size is greater than the current size, null items are added to the end of the vector. Otherwise, all components at index newSize and...
3 min read
Java Method The clear() method of Java Vector class is used to remove all of the elements from the vector which is in use. Syntax: Following is the declaration of clear() method: Public void clear() Parameter: This method does not accept any parameter. Returns: This method has return type void so, it...
2 min read
Java Method The get() method of Java Vector class is used to get the element at the specified position in the vector. Syntax Following is the declaration of get() method: public E get(int index) Parameter DataType Parameter Description Required/Optional int index It is an index of the element which will be returned. Required Return The get() method returns the...
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Java Method The add() is a Java Vector class method which is used to insert the specified element in the given Vector. There are two different types of Java add() method which can be differentiated depending on its parameter. These are: Java Vector add(int index, E...
3 min read
Java Method The ensureCapacity() method of Java Vector class is used to increase the capacity of the vector which is in use, if necessary. It ensures that the vector can hold at least the number of components specified by the minimum capacity argument. Syntax: Following is the...
2 min read
Java Method The lastIndexOf() Java Vector class method is used to get the index of the last occurrence of the specified element in the vector. There are two different types of Java lastIndexOf() method which can be differentiated depending on its parameter. These are: Java Vector...
3 min read
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