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Primitive types such as int, char, float, etc. are NOT classes. Thus one cannot use methods such as
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ALL primitive types have associated wrappers:
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Character myChar = new Character( 'A' );
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The Character class has methods such as:
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if ( myChar.equals( ch ) ) ...
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System.out.print( myChar.toString() );
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There are also many static (class) methods:
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ch = Character.toLowerCase( myChar );
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if ( Character.isUpperCase( myChar ) ) ...
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The methods in a wrapper class are also useful to convert types, such as a String to a Double.
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