0702 JSP JAVA基礎說明

八種基本型態相乘時的對應情況！

	byte	short	int	long	float	double
byte	int	int	int	long	float	double
short	int	int	int	long	float	double
int	int	int	int	long	float	double
long	long	long	long	long	float	double
float	float	float	float	float	float	double
double	double	double	double	double	double	double

CHAR型態的範例

public class Test {
  public static void main ( String[] args ){
    char m= '中';
    System.out.println(m);
    char a2 = 65;
    System.out.println(a2);
    char bell = 7;
    System.out.println(bell);
    System.out.println(bell);
    System.out.println(bell);
    System.out.println("\3 \4 \5 \6");
    char f = (char)(Math.random()*4+3);
    int n = (int)(Math.random()*13+1);
    System.out.println( f +" " +n);
    char yen ='\uFFE5';
    System.out.println( yen );
  }
}

批次執行檔

del *.class
javac *.java
java -cp . Test
pause
(隨意挑出一張樸克牌)

執行結果