Java String length() Method
Last Updated :
23 Dec, 2024
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String length() method in Java returns the length of the string. In this article, we will see how to find the length of a string using the String length() method.
Example:
class Geeks {
public static void main(String[] args){
String s1 = "abcd";
System.out.println(s1.length());
String s2 = "";
System.out.println(s2.length());
String s3 = "a";
System.out.println(s3.length());
}
}
Output
4 0 1
Important Points:
- The length() method returns the number of characters present in the string.
- Suitable for string objects but not for arrays.
- Can also be used for StringBuilder and StringBuffer classes.
- It is a public member method.
- Any object of the String class, StringBuilder class, and StringBuffer class can access the length() method using the ( . ) dot operator.
public int length()
Return Type: The return type of the length() method is int.
Examples of Java String length() Method
1. Use of length() method to find size of String
public class Geeks {
public static void main(String[] args){
// Here str is a string object
String str = "GeeksforGeeks";
System.out.println(str.length());
}
}
Output
The size of the String is 13
2. Compare the size of two Strings
// whether the length of two strings is
// equal or not using the length() method
import java.io.*;
class Geeks {
public static void main(String[] args) {
String s1 = "abc";
String s2 = "xyz";
// storing the length of both the
// strings in int variables
int len1 = s1.length();
int len2 = s2.length();
// checking whether the length of
// the strings is equal or not
if (len1 == len2) {
System.out.println("The length of both the strings"+ " are equal and is "+ len1);
}
else {
System.out.println("The length of both the strings"+ " are not equal");
}
}
}
Output
The length of both the strings are equal and is 3
