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Java lang.Integer.toBinaryString() method
The java.lang.Integer.toBinaryString() method returns a string representation of the integer argument as an unsigned integer in base 2.
Example
Following is an example to implement the toBinaryString() method in Java −
import java.lang.*; public class IntegerDemo { public static void main(String[] args) { int i = 170; System.out.println("Number = " + i); /* returns the string representation of the unsigned integer value represented by the argument in binary (base 2) */ System.out.println("Binary is " + Integer.toBinaryString(i)); // returns the number of one-bits System.out.println("Num } }
Output
Number = 170 Binary is 10101010 Number of one bits = 4
Let us see another example wherein we are considering a negative number −
Example
import java.lang.*; public class IntegerDemo { public static void main(String[] args) { int i = -35; System.out.println("Number = " + i); System.out.println("Binary is " + Integer.toBinaryString(i)); System.out.println("Number of one bits = " + Integer.bitCount(i)); } }
Output
Number = -35 Binary is 11111111111111111111111111011101 Number of one bits = 30
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