Java Program: Lambda expression to convert integer to binary

Java Lambda Program: Exercise-25 with Solution

Write a Java program to implement a lambda expression to convert an integer to their corresponding binary representation.

Sample Solution:

Java Code:

import java.util.function.Function;

public class Main {
  public static void main(String[] args) {
    int n = 33;
    System.out.println("Number: " + n);

    Function < Integer, String > convertToBinary = num -> Integer.toBinaryString(num);
    String binaryRepresentation = convertToBinary.apply(n);
    System.out.println("Binary representation: " + binaryRepresentation);
    n = 747;
    System.out.println("\nNumber: " + n);
    convertToBinary = num -> Integer.toBinaryString(num);
    binaryRepresentation = convertToBinary.apply(n);
    System.out.println("Binary representation: " + binaryRepresentation);
  }
}

Sample Output:

Number: 33
Binary representation: 100001

Number: 747
Binary representation: 1011101011

Explanation:

In the above exercise the program uses the Integer.toBinaryString() method to convert an integer to its binary representation. The lambda expression allows you to encapsulate this conversion logic and use it as a function.

The lambda expression:

• It takes an integer as input (num).
• It uses the Integer.toBinaryString() method to convert the integer to its binary representation.
• It returns the binary representation as a string.

Flowchart:

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Java Lambda Exercises Previous: Lambda expression to find largest prime factor.