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/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		byte b1=1,b2=2,b3,b6; 
		final byte b4=100,b5=100; 
		b6=b4+b5;  // line3 error: incompatible types: possible lossy conversion from int to byte
		b3=b1+b2;  // line4 error: incompatible types: possible lossy conversion from int to byte
		System.out.println(b3+b6);
	}
}

Main.java:14: error: incompatible types: possible lossy conversion from int to byte
		b6=b4+b5;  // line3 error: incompatible types: possible lossy conversion from int to byte
		     ^
Main.java:15: error: incompatible types: possible lossy conversion from int to byte
		b3=b1+b2;  // line4 error: incompatible types: possible lossy conversion from int to byte
		     ^
2 errors

Standard output is empty