Thread: Method Help

I am trying to create methods for each of my assigned task. The first there work without any problems since they don't pull Strings or ints. When I try to pull positiveTriangle or negativeTriangle it gives me an error in NetBean. Any help would be great.

Thanks

 
 
import java.util.Scanner;
public class main {
 
 
    public static void main(String[] args) {
 
    purpose();
 
    gettingPrintCharacter();
 
    gettingVarifyingInputs();
 
 
    }
 
    public static void purpose() {.....
        }
 
    public static void gettingPrintCharacter(){.....
    }
 
    public static void gettingVarifyingInputs(){....
    }
 
    public static void positiveTriangle(String aChar, int amount){....
    } 
 
    public static void negativeTriangle(String aChar, int amount, int opposite) {...
}

Welcome to the forum! Please read this topic to learn how to post code correctly and other useful info for new members.

Post the error.

Also, use common terminology. I don't know what you mean by "pull." In Java, methods can either return a result of a specific type, or they can return nothing and be 'void' methods.

what you mean by pull? one error could be the parameters you have in positiveTriangle and negativeTriange methods, in main when you call them you have to pass arguments.. you can create Striing and int variable and pass them to the methods..

I am trying to create methods for each of my assigned task. The first there work without any problems since they don't pull Strings or ints. When I try to pull positiveTriangle or negativeTriangle it gives me an error in NetBean. Any help would be great.

Thanks

positiveTriangle();

negativeTriangle();
dont work

 
import java.util.Scanner;
public class main {
 
 
    public static void main(String[] args) {
 
    purpose();
 
    gettingPrintCharacter();
 
    gettingVarifyingInputs();
 
    positiveTriangle();
 
    negativeTriangle();
 
 
    }
 
    public static void purpose() {  
            System.out.print("This program will print a right triangle. \nThe "
               + "character that is entered at the prompt will be used to print"
               + " a right triangle.  \nThe value that is entered at the prompt "
               + "will be the right triangle's height and width.  \nIf the value "
               + "is negative only an outline of the triangle will be printed "
               + "else a filled in triangle will be printed.\n\n");
       //displays purpose of program 
        }
 
    public static void gettingPrintCharacter(){
    Scanner keyboard = new Scanner (System.in);
    System.out.print("Enter the character to be used: ");
        String triangle = keyboard.next();
        //converts character(s) entered into string
       char aChar = triangle.charAt(0);
        //slects only the first character of the string
       //the string above is to "idiot" or accident prof if they enter 
       //more than one character
    }
 
    public static void gettingVarifyingInputs(){
       Scanner keyboard = new Scanner (System.in);
       int amount;
       boolean valid= false;
       while (!valid)//first loop unitl uers inputs correct value
        {// starts the main loop
     System.out.print("Enter a non-zero integer length (+/-1 through +/-16): ");
     amount = keyboard.nextInt();// length and width of triangle
     while(amount == 0 || amount >16 || amount <-16)// invalid input tester
    {// starts second loop for user to input correct value
     System.out.print("Input value outside of range");
     System.out.print("\nEnter a non-zero integer length (+/-1 through +/-16): ");
     amount = keyboard.nextInt();// length and width of triangle
    }// ends loop
    valid = true;// end user input loop
    }
    }
 
    public static void positiveTriangle(String aChar, int amount){
 
     int i = 1;
        int j = i;
do { //first do loop
    do{//second do loop
        System.out.print(aChar);
        j++;
    }while (j<=i);//second while loop end
    System.out.println();
          i++;
     j=1;
}while(i<=amount);//first while loop end
    }//ends last else 
 
    public static void negativeTriangle(String aChar, int amount, int opposite) {
 
     opposite = Math.abs(amount);//finds absolute value
for (int i = 0; i <= opposite; i++) {// first negative loop
      for (int j = 0; j <= i; j++) { // second negative loop  
        if (i == opposite) { 
          for (int k = 0; k<= opposite; k++)// third negative loop
            System.out.print("*");//prints for right outside of triangle
          break;//  ends third negative loop
} 
          else if (i > 1) {
          System.out.print("*");          
          for (int k = 0; k < i - 1; k++)// fourth negative loop
            System.out.print(" ");
          System.out.print("*"); 
          break;// end fouth negative loop                  
 } else //else to print outside of triangle
          System.out.print("*");//prints for right outside of triangle
      } // restarts the negative  second loop
      System.out.println();
    }// restarts the negative first loop
}// ends loop
 
 
 
 
 
 
    }

I am trying to create methods for each of my assigned task. The first there work without any problems since they don't pull Strings or ints. When I try to pull positiveTriangle or negativeTriangle it gives me an error in NetBean. Any help would be great.

Thanks

positiveTriangle();

negativeTriangle();
don't work

Screen Shot 2014-03-09 at 2.30.53 PM.jpgScreen Shot 2014-03-09 at 2.30.27 PM.jpgScreen Shot 2014-03-09 at 2.30.35 PM.jpg

 
import java.util.Scanner;
public class main {
 
 
    public static void main(String[] args) {
 
    purpose();
 
    gettingPrintCharacter();
 
    gettingVarifyingInputs();
 
    positiveTriangle();
 
    negativeTriangle();
 
 
    }
 
    public static void purpose() {  
            System.out.print("This program will print a right triangle. \nThe "
               + "character that is entered at the prompt will be used to print"
               + " a right triangle.  \nThe value that is entered at the prompt "
               + "will be the right triangle's height and width.  \nIf the value "
               + "is negative only an outline of the triangle will be printed "
               + "else a filled in triangle will be printed.\n\n");
       //displays purpose of program 
        }
 
    public static void gettingPrintCharacter(){
    Scanner keyboard = new Scanner (System.in);
    System.out.print("Enter the character to be used: ");
        String triangle = keyboard.next();
        //converts character(s) entered into string
       char aChar = triangle.charAt(0);
        //slects only the first character of the string
       //the string above is to "idiot" or accident prof if they enter 
       //more than one character
    }
 
    public static void gettingVarifyingInputs(){
       Scanner keyboard = new Scanner (System.in);
       int amount;
       boolean valid= false;
       while (!valid)//first loop unitl uers inputs correct value
        {// starts the main loop
     System.out.print("Enter a non-zero integer length (+/-1 through +/-16): ");
     amount = keyboard.nextInt();// length and width of triangle
     while(amount == 0 || amount >16 || amount <-16)// invalid input tester
    {// starts second loop for user to input correct value
     System.out.print("Input value outside of range");
     System.out.print("\nEnter a non-zero integer length (+/-1 through +/-16): ");
     amount = keyboard.nextInt();// length and width of triangle
    }// ends loop
    valid = true;// end user input loop
    }
    }
 
    public static void positiveTriangle(String aChar, int amount){
 
     int i = 1;
        int j = i;
do { //first do loop
    do{//second do loop
        System.out.print(aChar);
        j++;
    }while (j<=i);//second while loop end
    System.out.println();
          i++;
     j=1;
}while(i<=amount);//first while loop end
    }//ends last else 
 
    public static void negativeTriangle(String aChar, int amount, int opposite) {
 
     opposite = Math.abs(amount);//finds absolute value
for (int i = 0; i <= opposite; i++) {// first negative loop
      for (int j = 0; j <= i; j++) { // second negative loop  
        if (i == opposite) { 
          for (int k = 0; k<= opposite; k++)// third negative loop
            System.out.print("*");//prints for right outside of triangle
          break;//  ends third negative loop
} 
          else if (i > 1) {
          System.out.print("*");          
          for (int k = 0; k < i - 1; k++)// fourth negative loop
            System.out.print(" ");
          System.out.print("*"); 
          break;// end fouth negative loop                  
 } else //else to print outside of triangle
          System.out.print("*");//prints for right outside of triangle
      } // restarts the negative  second loop
      System.out.println();
    }// restarts the negative first loop
}// ends loop
 
 
 
 
 
 
    }

method negativeTriangle in class method cannot be applied to given types;
required: String, int, int
found: no arguments
reason: actual and formal arguments list differ in length




method positiveTriangle in class method cannot be applied to given types;
required: String, int
found: no arguments
reason: actual and formal arguments list differ in length





")" expected
";" expected
not a statement
";" expected
cannot find symbol
symbol: variable String
location: class main

Exception in thread "main" java.lang.RuntimeException: Uncompilable source code - Erroneous sym type: main.positiveTriangle
	at main.main(main.java:29)
Java Result: 1