Java Programming

In Code3 there are (6) numbered items. The first four are "compiler errors." Include a separate Word document with your assignment and explain why each will produce a compiler error and what you would do to fix the problem. Explain what is happening in 5 and 6 and why this code will prevent a possible compiler error.


// This program illustrates the use of Java datatypes.

import java.io.*;
import java.lang.*;

public class Code3
{  //begins Nums

public static void main(String args[])
   {
int x= 5;
int y= 2;
int z = 0;
long a, b = 0;
double d= 5.12345;
byte c = 0;
//float e = 34.2;  compiler error: (1)
float e = 34.2F;  //or float e = (float) 34.2;
short f,g,h;
f =2; g = f;
//h = f * g; compiler error (2)

//c = a;  compiler error (3)
//z = 5L; compiler error (4)
a = 6;             //promotion of int too long
b = 1000L;
z = (int) (5000L + b);  // (5)
c = (byte) (x*y); // (6)
a = c;
System.out.println(c);
        System.out.println(c * a);
System.out.println(b);
z = (int) d; // lose decimal places
System.out.println(z);
  } //end main
} //end Nums