Typumwandlung in Java

Einfache Datentypen

Von V \ Nach >	byte	short	int	long	float	double	char	String
byte	–	(short) b	(int) b	(long) b	(float) b	(double) b	(char) b	String.valueOf(b)
short	(byte) s	–	(int) s	(long) s	(float) s	(double) s	(char) s	String.valueOf(s)
int	(byte) i	(short) i	–	(long) i	(float) i	(double) i	(char) i	String.valueOf(i)
long	(byte) l	(short) l	(int) l	–	(float) l	(double) l	(char) l	String.valueOf(l)
float	(byte) f	(short) f	(int) f	(long) f	–	(double) f	(char) f	String.valueOf(f)
double	(byte) d	(short) d	(int) d	(long) d	(float) d	–	(char) d	String.valueOf(d)
char	(byte) c	(short) c	(int) c	(long) c	(float) c	(double) c	–	String.valueOf(c)
String	Byte.parseByte(s)	Short.parseShort(s)	Integer.parseInt(s)	Long.parseLong(s)	Float.parseFloat(s)	Double.parseDouble(s)	s.charAt(0)	–

Mit Wrapperklassen

Von V \ Nach >	Byte	Short	Integer	Long	Float	Double	Character	Boolean	String
Byte	–	Short.valueOf(b.byteValue())	Integer.valueOf(b.intValue())	Long.valueOf(b.longValue())	Float.valueOf(b.floatValue())	Double.valueOf(b.doubleValue())	Character.valueOf((char) b.byteValue())	❌	String.valueOf(b)
Short	Byte.valueOf(s.byteValue())	–	Integer.valueOf(s.intValue())	Long.valueOf(s.longValue())	Float.valueOf(s.floatValue())	Double.valueOf(s.doubleValue())	Character.valueOf((char) s.shortValue())	❌	String.valueOf(s)
Integer	Byte.valueOf(i.byteValue())	Short.valueOf(i.shortValue())	–	Long.valueOf(i.longValue())	Float.valueOf(i.floatValue())	Double.valueOf(i.doubleValue())	Character.valueOf((char) i.intValue())	❌	String.valueOf(i)
Long	Byte.valueOf(l.byteValue())	Short.valueOf(l.shortValue())	Integer.valueOf(l.intValue())	–	Float.valueOf(l.floatValue())	Double.valueOf(l.doubleValue())	Character.valueOf((char) l.longValue())	❌	String.valueOf(l)
Float	Byte.valueOf(f.byteValue())	Short.valueOf(f.shortValue())	Integer.valueOf(f.intValue())	Long.valueOf(f.longValue())	–	Double.valueOf(f.doubleValue())	Character.valueOf((char) f.floatValue())	❌	String.valueOf(f)
Double	Byte.valueOf(d.byteValue())	Short.valueOf(d.shortValue())	Integer.valueOf(d.intValue())	Long.valueOf(d.longValue())	Float.valueOf(d.floatValue())	–	Character.valueOf((char) d.doubleValue())	❌	String.valueOf(d)
Character	Byte.valueOf((byte) c.charValue())	Short.valueOf((short) c.charValue())	Integer.valueOf((int) c.charValue())	Long.valueOf((long) c.charValue())	Float.valueOf((float) c.charValue())	Double.valueOf((double) c.charValue())	–	❌	String.valueOf(c)
Boolean	❌	❌	❌	❌	❌	❌	❌	–	String.valueOf(b)
String	Byte.valueOf(s)	Short.valueOf(s)	Integer.valueOf(s)	Long.valueOf(s)	Float.valueOf(s)	Double.valueOf(s)	Character.valueOf(s.charAt(0))	Boolean.valueOf(s)	–