pp2.3
public class fudian {
public static void main(String[] args) {
float a=2.10f,b=3.70f;
float Result1,Result2,Result3;
Result1=a+b;
Result2=a-b;
Result3=a*b;
System.out.println("Result1 is:"+Result1);
System.out.println("Result2 is:"+Result2);
System.out.println("Result3 is:"+Result3);
}
}
2.4
public class TempConverter {
public static void main(String[] args) {
final int BASE = 32;
final double CONVERSION_FACTOR = 5.0 / 9.0;
double celsiusTemp;
int fahrenheitTemp = 70; // value to convert
celsiusTemp = (fahrenheitTemp - BASE)*CONVERSION_FACTOR; System.out.println ("Fahrenheit Equivalent: " + fahrenheitTemp);
System.out.println ("Celsius Temperature: " + celsiusTemp);
}
}
2.5
public class yinglizhuanqianmi {
public static void main(String[] args) {
float Base=1.60935f;
float Qianmi;
float Yingli=19.85f;
Qianmi=Yingli*Base;
System.out.println ("Ying Li: " + Yingli);
System.out.println ("Qian Mi: " +Qianmi);
}
}
2.6
public class TimeConverter1 {
public static void main(String[] args) {
int Hour=5,Minute=35,Second=51;
int SECONDS;