Java String length()

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This method returns the length of this string. The length is equal to the number of 16-bit Unicode characters in the string.

Internal implementation

public int length() 
  {  
      return value.length;  
  }
Syntax

Here is the syntax of this method −


public int length()
Specified by

CharSequence interface

Parameters

Here is the detail of parameters −

NA

Return Value

This method returns the the length of the sequence of characters represented by this object.

Java String length() method example

public class Test
{  
public static void main(String args[])
{  
String str1="cprogramcoding";  
String str2="java";  
System.out.println("string length is: "+str1.length());
System.out.println("string length is: "+str2.length());  
}
}


Output:

string length is: 14
string length is: 4
Java String length() Method Example

public class Test
{  
    public static void main(String[] args) 
  {  
        String s = "cprogramcoding";  
        if(s.length()>0) 
        {  
            System.out.println("String is not empty and length is: "+s.length());  
        }  
        s = "";  
        if(s.length()==0) 
        {  
            System.out.println("String is empty now: "+s.length());  
        }  
    }  
}


Output:

String is not empty and length is: 14
String is empty now: 0


import java.io.*;
public class Test 
{

   public static void main(String args[]) 
   {
      String Str1 = new String("Welcome to cprogramcoding.com");
      String Str2 = new String("Tutorials" );

      System.out.print("String Length :" );
      System.out.println(Str1.length());

      System.out.print("String Length :" );
      System.out.println(Str2.length());
   }
}


Output:


C:\new>javac Test.java

C:\new>java Test
String Length :29
String Length :9



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