형변환

자꾸 깜박한다.

저질기억력 ㅡㅜ

int to String

String str = Integer.toString(i);  
String str = "" + i;

 

String to int

int i = Integer.parseInt(str);  
int i = Integer.valueOf(str).intValue();

 

double to String

String str = Double.toString(d);

 

long to String

String str = Long.toString(l);

 

float to String

String str = Float.toString(f);

 

String to double

double d = Double.valueOf(str).doubleValue();

 

String to long

long l = Long.valueOf(str).longValue();  
long l = Long.parseLong(str);

 

String to float

float f = Float.valueOf(str).floatValue();

 

decimal to binary

String binstr = Integer.toBinaryString(i);

 

decimal to hexadecimal

String hexstr = Integer.toString(i, 16);  
String hexstr = Integer.toHexString(i);  
Integer.toHexString( 0x10000 | i).substring(1).toUpperCase());

 

hexadecimal(String) to int

int i = Integer.valueOf("B8DA3", 16).intValue();  
int i = Integer.parseInt("B8DA3", 16);

 

ASCII Code to String

String char = new Character((char)i).toString();

 

Integer to ASCII Code

int i = (int) c;

 

Integer to boolean

boolean b = (i != 0);

 

boolean to Integer

int i = (b)? 1 : 0;