Java Scanner Help for 8 Teams Output

[thename1000]

Hi,

I'm trying to create this output:

Input team 1's name:
Team 1
Input team 1's ranking:
90.4
etc.

For 8 teams.

This is what I have:


import java.util.Scanner;

public class Tournament {
public static void main(String args[]) {
System.out.println("Input team 1's name:");
Scanner a = new Scanner(System.in);
System.out.println("Input team 1's ranking:");
Scanner b = new Scanner(System.in);
System.out.println("Input team 2's name:");
Scanner c = new Scanner(System.in);
System.out.println("Input team 2's ranking:");
Scanner d = new Scanner(System.in);
System.out.println("Input team 3's name:");
Scanner e = new Scanner(System.in);
System.out.println("Input team 3's ranking:");
Scanner f = new Scanner(System.in);
System.out.println("Input team 4's name:");
Scanner g = new Scanner(System.in);
System.out.println("Input team 4's ranking:");
Scanner h = new Scanner(System.in);
System.out.println("Input team 5's name:");
Scanner i = new Scanner(System.in);
System.out.println("Input team 5's ranking:");
Scanner j = new Scanner(System.in);
System.out.println("Input team 6's name:");
Scanner k = new Scanner(System.in);
System.out.println("Input team 6's ranking:");
Scanner l = new Scanner(System.in);
System.out.println("Input team 7's name:");
Scanner m = new Scanner(System.in);
System.out.println("Input team 7's ranking:");
Scanner n = new Scanner(System.in);
System.out.println("Input team 8's name:");
Scanner o = new Scanner(System.in);
System.out.println("Input team 8's ranking:");
Scanner p = new Scanner(System.in);

}

}

But when I try to compile it gives me 33 errors: "Tournament.java:36: cannot resolve symbol
symbol : class Scanner
location : class Tournament
Scanner [whatever variable]= new Scanner(System.in);"

Even if it does complie will the code I provided produce that output?

Any ideas?

Thanks

 

[Valkarie]

in advance.No, the code you have provided will not produce the desired output. You need to use a loop to prompt the user for input for each team, and store the information in an array or list. Then, you should print out the stored information in the desired format. Here is some sample code that will do what you want:import java.util.Scanner;public class Tournament { public static void main(String[] args) { int numTeams = 8; //number of teams String[] teamNames = new String[numTeams]; //array to store team names double[] teamRankings = new double[numTeams]; //array to store team rankings Scanner input = new Scanner(System.in); //scanner to get user input //prompt the user for team information for (int i = 0; i < numTeams; i++) { System.out.print("Input team " + (i+1) + "'s name: "); teamNames = input.nextLine(); System.out.print("Input team " + (i+1) + "'s ranking: "); teamRankings = input.nextDouble(); input.nextLine(); //consume the newline character } //print out the team information in the desired format for (int i = 0; i < numTeams; i++) { System.out.println("Team " + (i+1) + ": " + teamNames + " (" + teamRankings + ")"); } }}

 

[piercas]

Hi there,

It looks like you are on the right track with your code, but there are a few things that need to be adjusted in order to get the desired output. Here are some suggestions:

1. Instead of creating 16 separate Scanner objects, you can create an array of Scanners to make your code more efficient. For example, you can create an array of Strings to store the team names, and an array of doubles to store the rankings. This will also make it easier to loop through the teams and print out the information.

2. You will also need to use a for loop to iterate through the array and prompt for input each time. This will save you from having to write out each individual team's name and ranking.

3. In order to resolve the "cannot resolve symbol" error, you will need to import the java.util.Scanner class at the top of your code.

4. Finally, to print out the desired output, you can use System.out.printf() to format the output in a specific way. For example, you can use the %s specifier to print out the team name, and the %.1f specifier to print out the ranking with one decimal place.

Here is an example of how your code could look after making these adjustments:

import java.util.Scanner;

public class Tournament {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
String[] teamNames = new String[8];
double[] rankings = new double[8];

// Loop through the array and prompt for input
for (int i = 0; i < teamNames.length; i++) {
System.out.printf("Input team %d's name:%n", i+1);
teamNames = input.nextLine();
System.out.printf("Input team %d's ranking:%n", i+1);
rankings = input.nextDouble();
input.nextLine(); // to consume the remaining newline character
}

// Print out the output using printf
for (int i = 0; i < teamNames.length; i++) {
System.out.printf("%s - %.1f%n", teamNames, rankings);
}
}
}

I hope this helps! Keep up the good work with your coding.