Create a marker for range with switch statement in java [closed]

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so I have an assignment that I need to use a switch statement to identify a marker for range of random values The question is like this:

Using switch statements, please identify the different ranges. Hence, follow the suggested markers:

“o” for numbers between (0,5];

“x” for numbers between (5, 10];

“s” for numbers between (10, 15];

“*” for numbers bigger than 15;

import java.util.*;

public class Problem01 {
    public static void main(String[] args) {
        //create random integer
        Random ran = new Random();
        int sum = 0;
        for (int i = 1; i <= 10; i++ ) {
            int random = ran.nextInt(20);
            //Printing the random number
            System.out.print("Number " + "(" + random + "): ");

            //Loop to print markers
            for(int j = 1; j <= random; j++) {
               //I don't know how to use the switch statement at this point, I tried everything and nothing work
            }
        }
    }
}

I have searched on the internet a lot but none of the way work, can you guys help me, thanks a lot

Answer

You can do the following:

import java.util.*;

public class Problem01 {
    public static void main(String[] args) {
        //create random integer
        Random ran = new Random();
        int sum = 0;
        for (int i = 1; i <= 10; i++ ) {
            int random = ran.nextInt(20);
            //Printing the random number
            System.out.print("Number " + "(" + random + "): ");

            switch ((random-1)/5) {
                case 0:
                    System.out.println("o");
                    break;
                case 1:
                    System.out.println("x");
                    break;
                case 2:
                    System.out.println("s");
                    break;
                default: //to handle case where the number is bigger than 15
                    System.out.println("*");
                    break;

            }
        }
    }
}

I’m not sure why you needed the inner loop.

This is the generated output for the above program.

Number (1): o
Number (10): x
Number (5): o
Number (13): s
Number (9): x
Number (13): s
Number (6): x
Number (16): *
Number (16): *
Number (10): x

edit: There is no direct way to use custom ranges with switch statements. This has been answered here



Source: stackoverflow