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Code Understanding

class VarDefaultValues
{
static byte b; static short s; static int i; static long l;
static char c; static double d; static float f; static boolean bool;
All the 8 types of primitive data types have been defined as class/static variables without any initialisation

public static void main(String[] args)
{
System.out.println(“Default value of byte “+b);
System.out.println(“Default value of short “+s);
System.out.println(“Default value of int “+i);
System.out.println(“Default value of long “+l);
Default values of integer types byte,short,int and long is 0.

System.out.println(“Default value of char “+c);
Of character type it is ‘u0000’ which is basically the null character of ascii code. This would be unprintable.

System.out.println(“Default value of double “+d);
System.out.println(“Default value of float “+f);
For decimal types float and double it is 0.0.

System.out.println(“Default value of boolean “+bool);
And for boolean type  it is false.

}
}

Notes

• The default value of local variables is not automatically set and they have to be initialised or assigned to be used in any expression of the program.
• The documentation of primitive types with default value explanation can be referred at
  https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html

Suggested Filename(s): VarKinds.java