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Thread: Problems with a "if-then and if-then-else" statements

  1. #1
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    Default Problems with a "if-then and if-then-else" statements

    import java.util.*;
    import java.io.*;
    public class TEster {
     
    	/**
    	 * @param args
    	 */
    	public static void main(String[] args) {
    			int x;
    			char Guess;
    			Scanner Number_input = new Scanner( System.in );
    			System.out.println("Enter a number: ");
    			x = Number_input.nextInt();
    		if (x >=50) {
    			Guess = 'Y';
    		} else if (x <=50) {
    			Guess = 'N';		
    	System.out.print("Number:" + Guess);
    		}
     
     
     
    		}
     
     
    	}

    Why won't Y or N print when i enter a number? I can input a number but after that nothing happens, Y or N should print for "Guess" right?


  2. #2
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    Default Re: Problems with a "if-then and if-then-else" statements

    import java.util.*;
    import java.io.*;
    public class TEster {
     
    	/**
    	 * @param args
    	 */
    	public static void main(String[] args) {
    			int x;
    			char Guess;
    			Scanner Number_input = new Scanner( System.in );
    			System.out.println("Enter a number: ");
    			x = Number_input.nextInt();
    		if (x >=50) {
    			Guess = 'Y';
    		} 
                    else if (x <=50) {
    	                Guess = 'N';		
    	                System.out.print("Number:" + Guess);
    		}
            }        
    }

    If you look at your if/else if statement, you'll see your problem. What happens when you enter a number higher than 50? What happens when you enter a number lower than 50? What happens when you enter 50 itself? I suggest reading The if-then and if-then-else Statements (The Java™ Tutorials > Learning the Java Language > Language Basics) for more info about it.

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