Java - Write code to return default value for Null Or Blank string using if statement

Requirements

Write code to filter Null Or Blank

Demo

//package com.book2s;

public class Main {
    public static void main(String[] argv) {
        String input = "book2s.com";
        String nullOrBlankDefault = "book2s.com";
        System.out.println(filterNullOrBlank(input, nullOrBlankDefault));
    }//  w w  w.j  av a 2s  .  co m

    public static String filterNullOrBlank(String input,
            String nullOrBlankDefault) {
        if (input == null || input.equals("") || input.trim().equals("")) {
            return nullOrBlankDefault;
        } else {
            return input;//input.trim();
        }
    }
}

Related Exercise

• if Statement
• Nested if statement
• if statement vs ternary operator
• Grading System
• determines if input number is prime
• Use if else statement to output day of week
• Valid Triangle
• Sort three numbers
• print all numbers from 1-1000 that are divisible by both 3 and 5
• Use loops to do simple math
• Use conditional statements
• Age range with if statement
• Find Duplicate in an int value array with nested for loop
• Get the Smallest Of 3 Numbers
• Check if a number is prime number
• User chooses a number then checks if it matches the random number and loops again if you lose and stops until you win
• checks how much time has passed by via Scanner

• Previous
• Next