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Java lang.Integer.toBinaryString() method - GeeksforGeeks

Last Updated : 05 Dec, 2018

The java.lang.Integer.toBinaryString() method returns a string representation of the integer argument as an unsigned integer in base 2. It accepts an argument in Int data-type and returns the corresponding binary string.

public static String toBinaryString(int num)

Parameter : The function accepts a single mandatory parameter num 
num - This parameter specifies the number to be converted to binary string. 
It is of int data-type 

This function returns the string representation of the unsigned Integer value represented by the argument in binary (base 2).

Input : 10 
Output : 1010 

Input : 9
Output : 1001 

// Java program to demonstrate
// java.lang.Integer.toBinaryString() method
import java.lang.Math;

class Gfg1 {

    // driver code
    public static void main(String args[])
    {

        int l = 10;
        // returns the string representation of the unsigned int value
        // represented by the argument in binary (base 2)
        System.out.println("Binary is " + Integer.toBinaryString(l));

        l = 9;
        System.out.println("Binary is " + Integer.toBinaryString(l));
    }
}

Output:

Binary is 1010
Binary is 1001

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