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Java: New string taking specified number of characters from first and last position of a given string

Java String: Exercise-61 with Solution

Write a Java program to create a new string taking specified number of characters from first and last position of a given string.

Visual Presentation:

Java String Exercises: New string taking specified number of characters from first and last position of a given string

Sample Solution:

Java Code:

import java.util.*;

// Define a class named Main
public class Main {
    
    // Method to return a string formed by taking 'n' characters from the beginning and 'n' characters from the end
    public String nTwice(String str, int n) {
        return str.substring(0, n) + str.substring(str.length() - n, str.length());
    }

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

        String str1 = "Welcome"; // String
        int n1 = 3; // Integer 'n'
        
        // Display the given string, the given number, and the new string formed using nTwice method
        System.out.println("The given strings is: " + str1);
        System.out.println("The given numbers is: " + n1);
        System.out.println("The new string is: " + m.nTwice(str1, n1));
    }
}

Sample Output:

The given strings is: Welcome
The given numbers is: 3
The new string is: Welome

Flowchart:

Flowchart: Java String Exercises - New string taking specified number of characters from first and last position of a given string

Java Code Editor:

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Previous: 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.
Next: Write a Java program to read a string and return true if "good" appears starting at index 0 or 1 in the given string.

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