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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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  10. How to convert hexadecimal value to integer value?
  11. How to convert octal value to integer value?
  12. How to convert string to integer using radix 27?
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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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