Source code for ValidateStringLengthExample.java:

public class ValidateStringLengthExample
{
	public static final int VALID     = 0;
	public static final int TOO_SHORT = 1;
	public static final int TOO_LONG  = 2;
	
	public int validateStringLength(String inputString)
	{
		int min = 10;	// minimum valid String length
		int max = 15;	// maximum valid String length
		if(inputString.length() < min)
		{
			return(TOO_SHORT);
		}
		if(inputString.length() > max)
		{
			return(TOO_LONG);
		}
		return(VALID);
	}
	
	public void testExamples()
	{
		int ret = validateStringLength("some input text here");
		if(ret == TOO_SHORT)
		{
			System.err.println("The input length is too short");
		}
		else
		{
			// continue with program flow
			System.err.println("The input length is not too short");
		}
		if(ret != VALID)
		{
			// Perhaps check for more specific error type here.
			System.err.println("The input length is not valid");
		}
	}
	
	public static void main(String args[])
	{
		ValidateStringLengthExample ex = new ValidateStringLengthExample();
		ex.testExamples();
	}
}

Output from ValidateStringLengthExample.java:

The input length is not too short
The input length is not valid

--- Output Ends ---

NOTE:

To run this program:

• javac ValidateStringLengthExample.java
• java ValidateStringLengthExample