Java Autobox and Unbox : Autobox Unbox « Data Type « Java

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Java » Data Type » Autobox UnboxScreenshots 
Java Autobox and Unbox
Java Autobox and Unbox
 

/*
License for Java 1.5 'Tiger': A Developer's Notebook
     (O'Reilly) example package

Java 1.5 'Tiger': A Developer's Notebook (O'Reilly) 
by Brett McLaughlin and David Flanagan.
ISBN: 0-596-00738-8

You can use the examples and the source code any way you want, but
please include a reference to where it comes from if you use it in
your own products or services. Also note that this software is
provided by the author "as is", with no expressed or implied warranties. 
In no event shall the author be liable for any direct or indirect
damages arising in any way out of the use of this software.
*/
public class ConversionTester {

  public static void main(String[] args) {
    Integer i = 0;

    // Boxing
    int foo = 0;
    Integer integer = foo;

    // Simple Unboxing
    int bar = integer;

    Integer counter = 1;        // boxing
    int counter2 = counter;     // unboxing

    while (true) {
      System.out.printf("Iteration %d%n", counter++);
      if (counter > 1000break;
    }

    Boolean case1 = true;
    Boolean case2 = true;
    boolean case3 = false;

    Boolean result = (case1 || case2&& case3;

    Integer i1 = 256;
    Integer i2 = 256;

    if (i1 == i2System.out.println("Equal!");
    else System.out.println("Not equal!");

    Boolean arriving = false;
    Boolean late = true;

    System.out.println(arriving ? (late ? "It's about time!" "Hello!"
                                  (late ? "Better hurry!" "Goodbye"));

    Integer peopleInRoom = 0;
    int maxCapacity = 100;
    boolean timeToLeave = false;
    while (peopleInRoom < maxCapacity) {
      if (arriving) {
        System.out.println("It's good to see you.");
        peopleInRoom++;
      else {
        peopleInRoom--;
      }
      if (timeToLeave) {
        do {
          System.out.printf("Hey, person %d, get out!%n", peopleInRoom);
          peopleInRoom--;
        while (peopleInRoom > 0);
      }
    }
  }
}

           
         
  
Related examples in the same category
1. What is Autoboxing?
2. Type conversion (JDK1.5 Autoboxing/Unboxing)
3. Demonstrate autobox and unbox.Demonstrate autobox and unbox.
4. Autobox unbox takes place with method parameters and return values.Autobox unbox takes place with method parameters and return values.
5. Autobox unbox occurs inside expressions. Autobox unbox occurs inside expressions.
6. Autobox unbox: convertAutobox unbox: convert
7. Autobox unbox a Boolean and Character. Autobox unbox a Boolean and Character.
8. An error produced by manual unboxing. An error produced by manual unboxing.
9. Autobox DemoAutobox Demo
10. Autoboxing/unboxing takes place with method parameters and return values.
11. Autoboxing/unboxing occurs inside expressions.
12. Auto-unboxing allows you to mix different types of numeric objects in an expression.
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