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Program: How to convert Integer to primitive types?


Here example program gives methods to convert Integer object to primitive types like int, float, double, long, short.

package com.java2novice.wrapper.integer;

public class MyIngegerByteValue {

	public static void main(String a[]){
		Integer itr = new Integer(10);
		System.out.println("byte value: "+itr.byteValue());
		System.out.println("double value: "+itr.doubleValue());
		System.out.println("float value: "+itr.floatValue());
		System.out.println("int value: "+itr.intValue());
		System.out.println("long value: "+itr.longValue());
		System.out.println("short value: "+itr.shortValue());

byte value: 10
double value: 10.0
float value: 10.0
int value: 10
long value: 10
short value: 10
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Knowledge Centre
doPost Vs doGet methods
doGet() method is used to get information, while doPost() method is used for posting information. doGet() requests can't send large amount of information and is limited to 240-255 characters. However, doPost()requests passes all of its data, of unlimited length. A doGet() request is appended to the request URL in a query string and this allows the exchange is visible to the client, whereas a doPost() request passes directly over the socket connection as part of its HTTP request body and the exchange are invisible to the client.
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About Author

I'm Nataraja Gootooru, programmer by profession and passionate about technologies. All examples given here are as simple as possible to help beginners. The source code is compiled and tested in my dev environment.

If you come across any mistakes or bugs, please email me to [email protected].

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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java™ Platform Standard Ed. 8 - API Specification | Java is registered trademark of Oracle.
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