java.lang
Class Integer

java.lang.Object
  |
  +--java.lang.Number
        |
        +--java.lang.Integer
All Implemented Interfaces:
Comparable, java.io.Serializable

public final synchronized class Integer
extends Number
implements Comparable


Field Summary
static int MAX_VALUE
           
static int MIN_VALUE
           
static Class TYPE
           
 
Constructor Summary
Integer(int)
           
Integer(String)
           
 
Method Summary
 byte byteValue()
           
 int compareTo(Integer)
           
 int compareTo(Object)
           
static Integer decode(String)
           
 double doubleValue()
           
 boolean equals(Object)
          Determines if this object is "equal" to another object.
 float floatValue()
           
static Integer getInteger(String)
           
static Integer getInteger(String, int)
           
static Integer getInteger(String, Integer)
           
 int hashCode()
           
 int intValue()
           
 long longValue()
           
static int parseInt(String)
           
static int parseInt(String, int)
           
 short shortValue()
           
static String toBinaryString(int)
           
static String toHexString(int)
           
static String toOctalString(int)
           
 String toString()
           
static String toString(int)
           
static String toString(int, int)
           
static Integer valueOf(String)
           
static Integer valueOf(String, int)
           
 

Field Detail

MIN_VALUE

public static final int MIN_VALUE

MAX_VALUE

public static final int MAX_VALUE

TYPE

public static final Class TYPE
Constructor Detail

Integer

public Integer(int)

Integer

public Integer(String)
        throws NumberFormatException
Method Detail

toString

public static String toString(int,
                              int)

toHexString

public static String toHexString(int)

toOctalString

public static String toOctalString(int)

toBinaryString

public static String toBinaryString(int)

toString

public static String toString(int)

parseInt

public static int parseInt(String,
                           int)
                    throws NumberFormatException

parseInt

public static int parseInt(String)
                    throws NumberFormatException

valueOf

public static Integer valueOf(String,
                              int)
                       throws NumberFormatException

valueOf

public static Integer valueOf(String)
                       throws NumberFormatException

byteValue

public byte byteValue()
Overrides:
byteValue in class Number

shortValue

public short shortValue()
Overrides:
shortValue in class Number

intValue

public int intValue()
Specified by:
intValue in class Number

longValue

public long longValue()
Specified by:
longValue in class Number

floatValue

public float floatValue()
Specified by:
floatValue in class Number

doubleValue

public double doubleValue()
Specified by:
doubleValue in class Number

toString

public String toString()
Overrides:
toString in class Object

hashCode

public int hashCode()
Overrides:
hashCode in class Object

equals

public boolean equals(Object)
Description copied from class: Object
Determines if this object is "equal" to another object.

In general, objects should be instances of the same class with the same guts to be considered equal. For example, the code below only prints same value since s and t are different strings though they have the same value: "hello".

 String s = new String("hello");
 String t = new String("hello");
 if (s.equals(t)) System.out.println("same value");
 if (s == t) System.out.println("same string");

 

Overrides:
equals in class Object
Following copied from class: java.lang.Object
Parameters:
is - the other Object to which this one is compared
Returns:
true if this Object is equal to other

getInteger

public static Integer getInteger(String)

getInteger

public static Integer getInteger(String,
                                 int)

getInteger

public static Integer getInteger(String,
                                 Integer)

decode

public static Integer decode(String)
                      throws NumberFormatException

compareTo

public int compareTo(Integer)

compareTo

public int compareTo(Object)
Specified by:
compareTo in interface Comparable