'How do I take the users input and have the program loop that many times for a for loop? [closed]

How do I take the user's input for how many legs are on the trip and have it loop that amount of times?

  int counter = 0;
       int  gas = 0;
       int legs = 1;
       double miles = 0;
       int mph= 0;
       
       System.out.print("How many gallons of gas in you tank(Integer 1-20):");
            gas = input.nextInt();
            gas+=gas;
         System.out.print("How many legs on your trip?: ");
         legs=input.nextInt();
         
         for (int x = 0; x< legs ; legs ++);
         {
             System.out.printf("Enter leg %d distance(Miles): ",counter);
             miles=input.nextDouble();
             
             System.out.printf("Enter leg %d Speed(MPH): ",counter);
             mph=input.nextInt();
javafor-loop


Solution 1:[1]

Include Scanner sc= new Scanner(System.in); in your code to read input from the console. And use sc.nextInt() to read inputs.

And remove ; after for-loop which is terminating the loop. And your trying to increment legs in for-loop instead of x change it to for (int x = 0; x<legs ; x++) .

Here is the modified code which worked for me

            int counter = 0;
            int  gas = 0;
            int legs = 1;
            double miles = 0;
            int mph= 0;
       Scanner sc= new Scanner(System.in); 
       System.out.print("How many gallons of gas in you tank (Integer 1-20):");
            gas = sc.nextInt();
            gas+=gas;
         System.out.print("How many legs on your trip?: ");
         legs=sc.nextInt();
         
         for (int x = 0; x<legs ;  x++)
         {
             System.out.printf("Enter leg %d distance(Miles): ",x);
             miles=sc.nextDouble();
             
             System.out.printf("Enter leg %d Speed(MPH): ",x);
             mph=sc.nextInt();
         }

Solution 2:[2]

you must write : for(int x=0; x<legs;x++) not: for(int x=0; x<legs;legs++) this loop will be infinitive unless legs is negative number

Sources

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Source: Stack Overflow

Solution Source
Solution 1 marc_s
Solution 2 Erkinoff Mohamed Ayyub

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