Java Learning notes-select structure

If statement

Dice Game (Dicegame):

public class Dicegame {
public static void Main (string[] args) {
Double s = math.random ();
int d = 1+ (int) (6*s);
if (d==6) {
System.out.println ("Your points are:" +d+ "Your luck is so good!" ");
}else if (d>=4) {
System.out.println ("Your points are:" +d+ "good luck." But it's already awesome! ");
}else if (d>=2) {
System.out.println ("Your points are:" +d+ "luck is a bit poor ha!") We need to work harder! ");
}else{
System.out.println ("Your points are:" +d+ "OK, you are very back, give you a chance!" ");
}
}
}

Switch statement

It is important to note that the switch statement has a case-penetrating phenomenon. So in normal use to pay attention to this, but there are some special circumstances we can also use this so-called case penetration phenomenon to achieve our goal.

eg://Letter Vowel Consonant judging procedure

public class test{

public static void Main (string[] args) {

Char letter = ' a ';

int randomnumber = (int) (26* (Math.random ()));

Char letter2 = (char) (letter + Randomnumber);

System.out.println (LETTER2);

Switch (letter2) {

Case ' a ':

Case ' E ':

Case ' I ':

Case ' O ':

Case ' U ':

System.out.println ("vowel Letter");

Break

Case ' Y ':

Case ' W ':

SYSTEM.OUT.PRINTLN ("semivowels letter");

Break

Default

SYSTEM.OUT.PRINTLN ("consonant letters");

break;

}

}

}

Java Learning notes-select structure