How to use valueof in java

The valueOf() method in Java is used to convert a string into a primitive type value. It provides the following overloaded version: booleanbytecharshortintlongfloatdouble By passing a string to this method, it will return the equivalent primitive type value for parsing numbers in the string and simplifying type conversion.

Usage of valueOf() method in Java

The valueOf() method is a powerful method in Java. Used to convert a string representation to the corresponding primitive type value. It provides overloaded versions for various primitive types.

Usage:

##public static T valueOf(String s)

Among them,

< ;T> is the primitive type to be converted to.

Overloaded versions:

The valueOf() method provides overloaded versions for the following primitive types:

boolean
• byte
• char
• short
• int
• long
• float
• double

Usage:

Pass the string representation to the valueOf() method and it will return its equivalent primitive type value. For example:

boolean b = Boolean.valueOf("true");
char c = Character.valueOf('a');
int i = Integer.valueOf("123");

Note: The

valueOf() method is a static method, so it can be called without creating an instance of the class.
• The string must contain a valid representation, otherwise
• NumberFormatException will be thrown.
Some primitive types (such as char and long) have optional prefixes. The valueOf() method supports these prefixes.
• The valueOf() method is useful for parsing numbers contained in a string. It can be used as a shortcut for various operations, such as type conversions, comparisons, and mathematical calculations.

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