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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
Procedural Vs Object-oriented Programs
In procedural program, programming logic follows certain procedures and the instructions are executed one after another. In OOP program, unit of program is object, which is nothing but combination of data and code.

In procedural program, data is exposed to the whole program whereas in OOPs program, it is accessible with in the object and which in turn assures the security of the code.
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-- Daniel J. Boorstin

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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