[sukatoa]

Not using Scanner,

Code:

public class test{

	public static void main(String args[]) throws Exception{
		String y;
		int x1;
		int x2;
		int excellent = 100;
		int verygood = 75;
		int good = 50;
		int low = 20;
		int poor = 10;
		int nosignal = 0;

		System.out.println("Please enter x1"); 
		x1 = Integer.parseInt(String.valueOf((System.in.read(new byte[200]))));
		System.out.println("Please enter x2"); 
		x2 = Integer.parseInt(String.valueOf((System.in.read(new byte[200]))));

		if((x1==excellent)&&(x2<=low)){
			y = "almost good" ;
		}else if ((x1==excellent)&&(x2<=poor)){
			y = "poor" ;
		}else if ((x1==excellent)&&(x2<=nosignal)){
			y = "no signal" ;
		}else if ((x1==verygood)&&(x2<=low)){
			y = " good" ;
		}else if ((x1==verygood)&&(x2<=poor)){
			y = "low" ;
		}else if ((x1==verygood)&&(x2<=nosignal)){
			y = "poor" ;
		}else if ((x1==good)&&(x2<=low)){
			y = "almost low" ;
		}else if ((x1==good)&&(x2<=poor)){
			y = "almost good" ;
		}else if ((x1==good)&&(x2<=nosignal)) {
			y = "poor" ;
		} else{
			y = "no sgnal" ;
		}
	
		System.out.println("your type of signal is:" + y); 
	}
}

Using Scanner,

Code:

public class test{

	public static void main(String args[]) throws Exception{
		String y;
		int x1;
		int x2;
		int excellent = 100;
		int verygood = 75;
		int good = 50;
		int low = 20;
		int poor = 10;
		int nosignal = 0;

		System.out.println("Please enter x1"); 
		x1 = Integer.parseInt(keyInput());
		System.out.println("Please enter x2"); 
		x2 = Integer.parseInt(keyInput());

		if((x1==excellent)&&(x2<=low)){
			y = "almost good" ;
		}else if ((x1==excellent)&&(x2<=poor)){
			y = "poor" ;
		}else if ((x1==excellent)&&(x2<=nosignal)){
			y = "no signal" ;
		}else if ((x1==verygood)&&(x2<=low)){
			y = " good" ;
		}else if ((x1==verygood)&&(x2<=poor)){
			y = "low" ;
		}else if ((x1==verygood)&&(x2<=nosignal)){
			y = "poor" ;
		}else if ((x1==good)&&(x2<=low)){
			y = "almost low" ;
		}else if ((x1==good)&&(x2<=poor)){
			y = "almost good" ;
		}else if ((x1==good)&&(x2<=nosignal)) {
			y = "poor" ;
		} else{
			y = "no sgnal" ;
		}
	
		System.out.println("your type of signal is:" + y); 
	}

	private static final String keyInput(){
		return new java.util.Scanner(System.in).nextLine();
	}
}

Using Buffered IO

Code:

import java.io.BufferedReader;
import java.io.InputStreamReader;

public class test{

	public static void main(String args[]) throws Exception{
		String y;
		int x1;
		int x2;
		int excellent = 100;
		int verygood = 75;
		int good = 50;
		int low = 20;
		int poor = 10;
		int nosignal = 0;

		System.out.println("Please enter x1"); 
		x1 = Integer.parseInt(String.valueOf((keyInput())));
		System.out.println("Please enter x2"); 
		x2 = Integer.parseInt(String.valueOf(keyInput()));

		if((x1==excellent)&&(x2<=low)){
			y = "almost good" ;
		}else if ((x1==excellent)&&(x2<=poor)){
			y = "poor" ;
		}else if ((x1==excellent)&&(x2<=nosignal)){
			y = "no signal" ;
		}else if ((x1==verygood)&&(x2<=low)){
			y = " good" ;
		}else if ((x1==verygood)&&(x2<=poor)){
			y = "low" ;
		}else if ((x1==verygood)&&(x2<=nosignal)){
			y = "poor" ;
		}else if ((x1==good)&&(x2<=low)){
			y = "almost low" ;
		}else if ((x1==good)&&(x2<=poor)){
			y = "almost good" ;
		}else if ((x1==good)&&(x2<=nosignal)) {
			y = "poor" ;
		} else{
			y = "no sgnal" ;
		}
	
		System.out.println("your type of signal is:" + y); 
	}

	private static final String keyInput(){
		try{
			return new BufferedReader(new InputStreamReader(System.in)).readLine();
		}catch(Exception e){
			e.printStackTrace();
			return "0";
		}
	}
}

Try to test it, have some experiments on it....