Java lang.Long.toBinaryString() method with Examples
The java.lang.Long.toBinaryString() method returns a string representation of the long argument as an unsigned integer in base 2. It accepts an argument in Long data-type and returns the corresponding binary string.
Syntax:
public static String toBinaryString(long num) Parameters : The function accepts a single mandatory parameter: num - This parameter specifies the number to be converted to binary string. It is of Long data-type.
Return Value: This function returns the string representation of the unsigned Long value represented by the argument in binary (base 2).
Examples:
Input : 10 Output : 1010 Input : 9 Output : 1001
Program 1 : The program below demonstrates the working of function.
// Java program to demonstrate // of java.lang.Long.toBinaryString() method import java.lang.Math; class Gfg1 { // driver code public static void main(String args[]) { long l = 10 ; // returns the string representation of the unsigned long value // represented by the argument in binary (base 2) System.out.println( "Binary is " + Long.toBinaryString(l)); l = 20987752 ; System.out.println( "Binary is " + Long.toBinaryString(l)); } } |
Output:
Binary is 1010 Binary is 1010000000011111101101000
Program 2: The program below demonstrates the working function when a negative number is passed.
// Java program to demonstrate overflow // of java.lang.Long.toBinaryString() method import java.lang.Math; class Gfg1 { // driver code public static void main(String args[]) { // conversion of a negative number to Binary long l = - 13 ; System.out.println( "Binary is " + Long.toBinaryString(l)); } } |
Output:
Binary is 1111111111111111111111111111111111111111111111111111111111110011
Errors and Exceptions: Whenever a decimal number or a string is passed as an argument, it returns an error message which says “incompatible types”.
Program 3: The program below demonstrates the working function when a string number is passed.
// Java program to demonstrate overflow // of java.lang.Long.toBinaryString() method import java.lang.Math; class Gfg1 { // driver code public static void main(String args[]) { // error message thrown when a string is passed System.out.println( "Binary is " + Long.toBinaryString( "10" )); } } |
Output:
prog.java:12: error: incompatible types: String cannot be converted to long System.out.println("Binary is " + Long.toBinaryString("10"));
Program 4: The program below demonstrates the working function when a decimal is passed.
// Java program to demonstrate overflow // of java.lang.Long.toBinaryString() method import java.lang.Math; class Gfg1 { // driver code public static void main(String args[]) { // error message thrown when a decimal is passed System.out.println( "Binary is " + Long.toBinaryString( 10.25 )); } } |
Output:
prog.java:12: error: incompatible types: possible lossy conversion from double to long System.out.println("Binary is " + Long.toBinaryString(10.25));
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