convert decimal to binary in java
public class DecimalToBinaryExample2{
public static void toBinary(int decimal){
int binary[] = new int[40];
int index = 0;
while(decimal > 0){
binary[index++] = decimal%2;
decimal = decimal/2;
}
for(int i = index-1;i >= 0;i--){
System.out.print(binary[i]);
}
System.out.println();//new line
}
public static void main(String args[]){
System.out.println("Decimal of 10 is: ");
toBinary(10);
System.out.println("Decimal of 21 is: ");
toBinary(21);
System.out.println("Decimal of 31 is: ");
toBinary(31);
}}