About the method to convert a character string to an integer / decimal number (cast data) in Java

Data type conversion (casting data)

Conversion from character strings to integers and decimals

-Method to convert to integer Integer.parseInt (variable name);

-Method to convert to decimal Double.parseDouble (variable name);

String text = "123"

System.out.println(text);  // 123 (Output as it is as a character string)
System.out.println(Integer.parseInt(text)); // 123 (Convert to integer)
System.out.println(Double.parseDouble(text)); // 123.0 (Convert to decimal)

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