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Showing content from https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Boolean.html below:

Boolean (Java SE 11 & JDK 11 )

- Field Detail
  - TRUE
```
public static final Boolean TRUE
```
    The Boolean object corresponding to the primitive value true.
  - FALSE
```
public static final Boolean FALSE
```
    The Boolean object corresponding to the primitive value false.
  - TYPE
```
public static final Class<Boolean> TYPE
```
    The Class object representing the primitive type boolean.
    
    Since:
    
    1.1
- Constructor Detail
  - Boolean
```
@Deprecated(since="9")
public Boolean(boolean value)
```
    Allocates a Boolean object representing the value argument.
    
    Parameters:
    
    value - the value of the Boolean.
  - Boolean
```
@Deprecated(since="9")
public Boolean(String s)
```
    Allocates a Boolean object representing the value true if the string argument is not null and is equal, ignoring case, to the string "true". Otherwise, allocates a Boolean object representing the value false.
    
    Parameters:
    
    s - the string to be converted to a Boolean.
- Method Detail
  - parseBoolean
```
public static boolean parseBoolean(String s)
```
    Parses the string argument as a boolean. The
    boolean
    returned represents the value
    true
    if the string argument is not
    null
    and is equal, ignoring case, to the string
    "true"
    . Otherwise, a false value is returned, including for a null argument.
    
    Example: Boolean.parseBoolean("True") returns true.
    Example: Boolean.parseBoolean("yes") returns false.
    
    Parameters:
    
    s - the String containing the boolean representation to be parsed
    
    Returns:
    
    the boolean represented by the string argument
    
    Since:
    
    1.5
  - booleanValue
```
public boolean booleanValue()
```
    Returns the value of this Boolean object as a boolean primitive.
    
    Returns:
    
    the primitive boolean value of this object.
  - valueOf
```
public static Boolean valueOf(boolean b)
```
    Returns a
    Boolean
    instance representing the specified
    boolean
    value. If the specified
    boolean
    value is
    true
    , this method returns
    Boolean.TRUE
    ; if it is
    false
    , this method returns
    Boolean.FALSE
    . If a new
    Boolean
    instance is not required, this method should generally be used in preference to the constructor
    Boolean(boolean)
    , as this method is likely to yield significantly better space and time performance.
    
    Parameters:
    
    b - a boolean value.
    
    Returns:
    
    a Boolean instance representing b.
    
    Since:
    
    1.4
  - valueOf
```
public static Boolean valueOf(String s)
```
    Returns a Boolean with a value represented by the specified string. The Boolean returned represents a true value if the string argument is not null and is equal, ignoring case, to the string "true". Otherwise, a false value is returned, including for a null argument.
    
    Parameters:
    
    s - a string.
    
    Returns:
    
    the Boolean value represented by the string.
  - toString
```
public static String toString(boolean b)
```
    Returns a String object representing the specified boolean. If the specified boolean is true, then the string "true" will be returned, otherwise the string "false" will be returned.
    
    Parameters:
    
    b - the boolean to be converted
    
    Returns:
    
    the string representation of the specified boolean
    
    Since:
    
    1.4
  - toString
```
public String toString()
```
    Returns a String object representing this Boolean's value. If this object represents the value true, a string equal to "true" is returned. Otherwise, a string equal to "false" is returned.
    
    Overrides:
    
    toString in class Object
    
    Returns:
    
    a string representation of this object.
  - hashCode
```
public int hashCode()
```
    Returns a hash code for this Boolean object.
    
    Overrides:
    
    hashCode in class Object
    
    Returns:
    
    the integer 1231 if this object represents true; returns the integer 1237 if this object represents false.
    
    See Also:
    
    Object.equals(java.lang.Object), System.identityHashCode(java.lang.Object)
  - hashCode
```
public static int hashCode(boolean value)
```
    Returns a hash code for a boolean value; compatible with Boolean.hashCode().
    
    Parameters:
    
    value - the value to hash
    
    Returns:
    
    a hash code value for a boolean value.
    
    Since:
    
    1.8
  - equals
```
public boolean equals(Object obj)
```
    Returns true if and only if the argument is not null and is a Boolean object that represents the same boolean value as this object.
    
    Overrides:
    
    equals in class Object
    
    Parameters:
    
    obj - the object to compare with.
    
    Returns:
    
    true if the Boolean objects represent the same value; false otherwise.
    
    See Also:
    
    Object.hashCode(), HashMap
  - getBoolean
```
public static boolean getBoolean(String name)
```
    Returns
    true
    if and only if the system property named by the argument exists and is equal to, ignoring case, the string
    "true"
    . A system property is accessible through
    getProperty
    , a method defined by the
    System
    class.
    
    If there is no property with the specified name, or if the specified name is empty or null, then false is returned.
    
    Parameters:
    
    name - the system property name.
    
    Returns:
    
    the boolean value of the system property.
    
    Throws:
    
    SecurityException - for the same reasons as System.getProperty
    
    See Also:
    
    System.getProperty(java.lang.String), System.getProperty(java.lang.String, java.lang.String)
  - compareTo
```
public int compareTo(Boolean b)
```
    Compares this Boolean instance with another.
    
    Specified by:
    
    compareTo in interface Comparable<Boolean>
    
    Parameters:
    
    b - the Boolean instance to be compared
    
    Returns:
    
    zero if this object represents the same boolean value as the argument; a positive value if this object represents true and the argument represents false; and a negative value if this object represents false and the argument represents true
    
    Throws:
    
    NullPointerException - if the argument is null
    
    Since:
    
    1.5
    
    See Also:
    
    Comparable
  - compare
```
public static int compare(boolean x,
                          boolean y)
```
    Compares two
    boolean
    values. The value returned is identical to what would be returned by:
```
    Boolean.valueOf(x).compareTo(Boolean.valueOf(y))
 
```
    Parameters:
    
    x - the first boolean to compare
    
    y - the second boolean to compare
    
    Returns:
    
    the value 0 if x == y; a value less than 0 if !x && y; and a value greater than 0 if x && !y
    
    Since:
    
    1.7
  - logicalAnd
```
public static boolean logicalAnd(boolean a,
                                 boolean b)
```
    Returns the result of applying the logical AND operator to the specified boolean operands.
    
    Parameters:
    
    a - the first operand
    
    b - the second operand
    
    Returns:
    
    the logical AND of a and b
    
    Since:
    
    1.8
    
    See Also:
    
    BinaryOperator
  - logicalOr
```
public static boolean logicalOr(boolean a,
                                boolean b)
```
    Returns the result of applying the logical OR operator to the specified boolean operands.
    
    Parameters:
    
    a - the first operand
    
    b - the second operand
    
    Returns:
    
    the logical OR of a and b
    
    Since:
    
    1.8
    
    See Also:
    
    BinaryOperator
  - logicalXor
```
public static boolean logicalXor(boolean a,
                                 boolean b)
```
    Returns the result of applying the logical XOR operator to the specified boolean operands.
    
    Parameters:
    
    a - the first operand
    
    b - the second operand
    
    Returns:
    
    the logical XOR of a and b
    
    Since:
    
    1.8
    
    See Also:
    
    BinaryOperator

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