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Java: Read a string,if the string begins with "red" or "black" return that color string, otherwise return the empty string

Java String: Exercise-59 with Solution

Write a Java program to read a string. If the string begins with "red" or "black" return that color string, otherwise return the empty string.

Visual Presentation:

Java String Exercises: Read a string,if the string begins with "red" or "black" return that color string, otherwise return the empty string

Sample Solution:

Java Code:

import java.util.*;

// Define a class named Main
public class Main {
    
    // Method to pick a color from the beginning of the string
    public String pickColor(String str) {
        // Check if the string starts with "red", return "red" if true
        if (str.startsWith("red"))
            return "red";
        // Check if the string starts with "black", return "black" if true
        if (str.startsWith("black"))
            return "black";
        else
            return ""; // Return an empty string if the string doesn't start with "red" or "black"
    }

    // Main method to execute the program
    public static void main(String[] args) {
        Main m = new Main(); // Create an instance of the Main class

        // Define a string to check for the color at the beginning
        String str1 = "blacksea";

        // Display the given string and the color it begins with using the pickColor method
        System.out.println("The given string is: " + str1);
        System.out.println("The string begins with the color: " + m.pickColor(str1));
    }
}

Sample Output:

The given strings is: blacksea
The string begins with the color: black

Flowchart:

Flowchart: Java String Exercises - Read a string,if the string begins with "red" or "black" return that color string, otherwise return the empty string

Java Code Editor:

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Next: Write a Java program to read two strings append them together and return the result. If the strings are different lengths, remove characters from the beginning of longer string and make them equal length.

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