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Converting Strings to Numeric Primitive Data Types
To convert a string which is containing digits to a primitive data type, wrapper classes can help. parseXxx method can be used to convert a String to corresponding primitive data type.
String value = "532";
int d = Integer.parseInt(value);
String value = "3.14e6";
double d = Double.parseDouble(value);
Why there is a need to use primary key in database ? Primary key is a constraint basically used in datdabase to uniquely identify the records in the database.
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what is the use of design pattern in java ?
who can helps me with pseudocode with that topic above mencioned
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