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Java Java Objects (Retired) Harnessing the Power of Objects Incrementing

Posted by Naphtali Matione
Naphtali Matione
5,224 Points

the Integer

whats the difference between the Integer and the integer

GoKart.java 
public class GoKart {
  public static final int MAX_ENERGY_BARS = 8;
  private String mColor;
  private int mBarsCount;

  public GoKart(String color) {
    mColor = color;
    mBarsCount = 0;
  }

  public String getColor() {
    return mColor;
  }

  public void charge() {
    mBarsCount = MAX_ENERGY_BARS;
  }

  public boolean isBatteryEmpty() {
    return mBarsCount == 0;
  }

  public boolean isFullyCharged() {
    return mBarsCount == MAX_ENERGY_BARS;
  }

}

2 Answers

Justin LeFurjah
Justin LeFurjah
12,347 Points
Justin LeFurjah
Justin LeFurjah
12,347 Points

Integer is a class, whereas int is a primitive type.

Naphtali Matione
Naphtali Matione
5,224 Points

thanx justin

Ethan Lowry
PLUS
Ethan Lowry
Courses Plus Student 7,323 Points
Ethan Lowry
Ethan Lowry
Courses Plus Student 7,323 Points

To elaborate slightly here; this means that while the primitive int can only be used for storing integer values, the Integer class can be used for more complex stuff like e.g. parsing an integer value from a string with its parseInt method, like so:

int x = Integer.parseInt("9");

Feel free to check out the Java documentation for the Integer class to see all the other stuff it can do.

Naphtali Matione
Naphtali Matione
5,224 Points

thanx Ethan awesome answer