Strings and Regular Expressions - The Java Programming Language - page 466

To String From String

Type

boolean String.valueOf(boolean) Boolean.parseBoolean(String)

byte String.valueOf(int) Byte.parseByte(String, int base)

char String.valueOf(char) str .charAt(0)

short String.valueOf(int) Short.parseShort(String, int base)

int String.valueOf(int) Integer.parseInt(String, int base)

long String.valueOf(long) Long.parseLong(String, int base)

float String.valueOf(float) Float.parseFloat(String)

double String.valueOf(double) Double.parseDouble(String)

To convert a primitive type to a String you invoke one of the static
valueOf methods of String , which for numeric types produces a base 10
representation.

The Integer and Long wrapper classesas described in Chapter 8 also
provide methods toBinaryString , toOctalString , and toHexString for other
representations.

To convert, or more accurately to parse a string into a primitive type
you invoke the static parse Type method of the primitives type's corres-