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Java String Exercises: 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.

Sample Solution:

Java Code:

import java.util.*;
public class Main
{
public String pickColor(String str) 
{
  if (str.startsWith("red"))
    return "red";
  if (str.startsWith("black"))
    return "black";
  else
    return "";
}
public static void main (String[] args)
    {
      Main m= new Main();
      String str1 =  "blacksea";
      System.out.println("The given strings 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

Pictorial Presentation:

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

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

Visualize Java code execution (Python Tutor):


Java Code Editor:

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Java: Tips of the Day

How to sort an ArrayList?

Collections.sort(testList);
Collections.reverse(testList);

That will do what you want. Remember to import Collections though!

Ref: https://bit.ly/32urdSe