// a simple class to demonstrate various declarations
public class Declarations
{
    public static void main(String args[])
    {
        int i;                  // frequently used as a counter
        int j,k;                // two variables in a single declaration
        int myAge, yourAge;
        yourAge = (myAge = 6);
        yourAge = myAge = 6;    // now we are six
        myAge = 6;
        yourAge = myAge;
        int ourAge = 6;         // a perfect age...
        int sum;                // sum of integers
        sum = 0;                // clear sum
        /*
          int big  =  2147483648;
          */
        long national_debt;     // how *many* dollars?
        long num =12345678910L;
        float velocity = 1.86E5F;// speed of light in mps
        float nano = 1.1785E1F;  // distance light travels in one nsec
        int x = (int)5E0;       // 5.0 is cast to the integer 5
        double pi = 3.14159265358979323E0D;
        double daysInYear = 3.652422e2d;
        double timeLeftInGame = 1.3;
        double r = 3.0E+2;      // r (300) is declared as double
        float p;
        int q;

        q=(int)r;               // r is whole, so no information lost
        p=(float)r;             // r is small, so no information lost
    }
}
/*
declarations.java:12: Numeric overflow.
int big  =  2147483648;
            ^
1 error
*/