{class Testfun public
public static void main (String [] args) {
// (a) Cross-type conversion of the parent class Number
// 1, str = turn int> the Integer.parseInt (S1)
String S1 = ". 19";
int i2 = Integer.parseInt (s1); // str digital conversion for the subject int
System.out.println ( "I2 = ++" + (++ I2));
// 2, int turn str => Integer.toString (I3)
int I3 = 27;
String Integer.toString S4 = (I3);
System.out.println ( "S4 =" + S4);
//. 3, the floating-point switch = int> (int) d5 of
Double = 21.6 d5 of ;
int I6 = (int) d5 of;
System.out.println ( "I6 =" + I6);
//. 4, int turn floating point => (Double) i7
int i7 = 60;
Double D8 = (Double) i7;
System.out.println ( "d8 =" + d8 );
);
// (ii) with the parent Number casts
System.out.println();
I9 = new new Integer Integer ( ". 17");
System.out.println (i9.intValue ()); // Digital Switch str = int> i9.intValue ()
System.out.println (i9.shortValue ()) ; // digital Switch str = Short> i9.shortValue ()
System.out.println (i9.byteValue ()); // digital Switch str = byte> i9.byteValue ()
System.out.println ();
// int turn str (hexadecimal form of different STR)
System.out.println (Integer.toString (456)); // Get decimal STR
System.out.println (Integer.toBinaryString (456)); // obtaining binary STR
System.out.println (Integer.toHexString (456)); // Get hexadecimal STR
System.out.println (Integer.toOctalString (456)); // Get octal STR
}
}