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Answer» In Java, the length() is a method of String class whereas length is an instance VARIABLE of an array. - length in Java
- The length variable returns the length of an array i.e. a number of elements present in an array.
- After initializing, the length of an array cannot be changed, so the length variable can directly be used to get the length of an array.
- It is used only for an array.
- Example:
public class InterviewBit { public static VOID MAIN(String args[]) { int array[] = {1, 2, 3, 4, 5}; System.out.println("Length of an array is: " + array.length); }}OUTPUT Length of an array is: 5- length() in Java
- It is a static method of String class.
- The length() returns the number of characters stored in a string object.
- The string class uses this method as the length of a string can be modified using the various operations performed on a string object.
- The String class uses a char[] array internally.
- Example:
public class InterviewBit { public static void main(String args[]) { String STR = "Welcome to InterviewBit"; System.out.println("Length of String using length() method is: " + str.length()); }}Output: Length of String using length() method is: 23
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