This example code takes the help of Integer class and converts the integer to the octal and hexadecimal number.
public class HexaOctalExp {
public static void main(String[] args) {
int i = 74;
String hexString = Integer.toHexString( i );
String octString = Integer.toOctalString( i );
System.out.println("Hexa decimal conversion "+hexString);
System.out.println("Octal coversion "+octString);
}
}