int a, b, sum; System.out.print("the sum is"); Scanner in = new Scanner(System.in); a = in.nextInt(); b = in.nextInt(); Sum = a + b; System.out.println("the sum us" + sum);
in "sum = a+b" its says "incompatible types: int cannot be converted to boolean" I dont understand why
I am trying to write a password checker program and thats the error i get. (the final error!) but this one i dont know how to fix. here is my code.
/* Text Text text */
import java.util.Scanner; // Imports the Scanner class to get Keyboard Inputs class PriceRichardChapter5Test { public static void main (String [] args) { String Password; // Creates the Password variable
I have a method that receives an array of integers and saves the ID of the user inside the array of integers and I keep getting the error: "int[] cannot be converted to int".Here is the code:
public boolean Borrow (String TitleOrAuthor,int id){ int count = 0; int b1 = 0; int BookCount [] = new int [b1]; for (int i=0;i<Bcount;i++){ if(Booklist[i].getTitle().equals(TitleOrAuthor)) for(int j=0;j<b1;j++){ BookCount [j]= Booklist[i].getCopies(); BookCount [j]= id; b1++;
import javax.swing.JOptionPane; public class Input { public static void main(String[] args) { int user; user = JOptionPane.showMessageDialog(null, "Enter Your Age""); ERROR IS HERE if(user <= 18) { JOptionPane.showMessageDialog(null, "User is legit"); } else { JOptionPane.showMessageDialog(null, "User is not legit"); } } }
I'm getting this error message :
incompatible types: void cannot be converted to int
I have created a java file and coverted it into exe file.. that exe file can be run directly by clicking the icon.... i dont need this, i want to install this java exe file and then use it.. is there any possible way?
I have coded three classes ,1 class containing the Main method. I have declared three private data fields in Staff class and two data fields in Address class. The problem is that I am assigning String type data field from the Staff and Address Class through the public set methods to String type array in a public void method in the Main class.
public static void main(String[] args){ // TODO code application logic here System.out.println("-------------------------------------------------"); System.out.println("Press 1 - 6 To Perform Any One Following Action "); System.out.println("1. Insert New Contact "); System.out.println("2. Delete Contact By Name "); System.out.println("3. Replace Info From Contact "); System.out.println("4. Search Contact By Name "); System.out.println("5. Show All Contacts "); System.out.println("6. Exit Program ");
I don't understand how i'm supposed to define a variable when the user has to type it into the program so it can be converted. This program i'm working on is supposed to convert from meters to feet (meter = feet * 0.305) but the user has to type in the meters they want converted. how do i solve the problem that keeps coming up that says "variable meter symbol cant be found" ? I keep trying different lines to no avail
public class Lab2 { public static void main(String[] args) { double feet = meter * 0.305; double meter = feet/0.305; System.out.println("Enter in feet for conversion to meters"); meter = meter * 0.305;
I am working on a project that just calculates simple interest based upon a principal and a percent interest rate written as .xxxx from user.
I need the Loan amount and the final interest calculation to show up as a currency with commas in appropriate areas, the Rate to be expressed as X.xxx% instead of .xxxx
I keep getting this error when I compile:
C:JavaInterestCalculator.java:46: error: incompatible types: String cannot be converted to double principal = formatter.format(principal); ^ C:JavaInterestCalculator.java:49: error: incompatible types: String cannot be converted to double rate = formatter.format(rate); ^ C:JavaInterestCalculator.java:52: error: incompatible types: String cannot be converted to double totalInterest = formatter.format(totalInterest); ^ 3 errors
Tool completed with exit code 1
And here is my code
import java.util.Scanner; import java.text.NumberFormat; import java.text.DecimalFormat; // class declaration public class InterestCalculator { // main method declaration
I am making a program which accepts two user inputs one being a letter either upper or lower case and the other being a number. the out come should be some thing like this:
G GG GGG GGGG GGGGG
This is assuming the user inputted 'G' and '5'.
here is the code i have so far:
package week10; import java.util.Scanner; public class integer { public static void main(String args[]) { Scanner user_input = new Scanner( System.in );
[Code] ....
The problem i am having is that i cant get the number that is inputted to be accepted as a variable to be used for the program.
how to determine if an integer is even or odd by using a boolean method. I think I have the method right, but it's calling the method into the main that has got me stumped.
import java.util.Scanner; public class Odd_Even { public static void main(String[] args) { //Scanner, variables Scanner input = new Scanner(System.in); int number;
So I'm trying to check if the new coordinates vs original coordinates are diagonal and 1 line further, and if there is a piece there(getNum()) if it's 2 lines further, so I'm trying to return a boolean value then.
so if it's the first if, it returns true, if it's the 2nd it returns true, then I say else for all other scenario's, and return false there, but my compiler says my method is missing a return statement.
public boolean check(int[] d) { int x,y; x = loc[0][0]; y = loc[0][1]; int sx = d[0]; int sy = d[1];
[Code] .....
Edit: used a local boolean and returned that after my if's.,
code=Java import java.util.Random; import java.util.Scanner; public final class Derp { public static int WIN, Tick; public static Scanner Input = new Scanner(System.in);
[code]...
why this boolean statement isn't working correctly. It's not detecting that the WIN and Tick are the same and instead chooses to always run the second statement.
I have this project due and its asking that i print out what type of triangle it is when the user inputs 3 sides. I have most of it done and working, but it pops up different windows instead of using one window for everything. The assignment says it needs all the final info to be in one window. The boolean is coming from another method. I'm unsure how to get it into a string (Or if that's what i have to do). The method must return a boolean true/false.
import javax.swing.*; public class Triangle { public static void main(String[] args) { int side1 = getSides(); int side2 = getSides(); int side3 = getSides();
I read in a book that when you change the value of a method parameter that's a boolean or other basic datatype within the method it only is changed within the method and remains the same outside. I want to know if there is some way for me to actually change it within the method. For example:
public class Change { void convert(boolean x, boolean y, boolean z) { //i want to set x,y, and z to false in this x = false; y = false; z = false;
[code]...
I want to put in part1, part2, and part3 when i call the method than i want them to be set to false within the method. The specific reason i asked this question was because im trying to code a battleship and i have a subroutine class with a method that when its called it checks if a ship has been sunk. If the there was a sink than the method will set a ton of boolean variables to false.
Just to clarify, I want something like this:
void convert(thing1,thing2,thing3,thing4) { //some code here that sets thing1,thing2,thing3, and thing4 to false } // than in main: boolean test1 = true; boolean test2 = true;
I wrote a class for encapsulating coins and I was to do a boolean statement but when I test the statement the results are not showing.Here is the code for my coin class coins.java
package project_3; /** * * @author user a */ public class Coins { private double pennies; private double nickles ; private double dimes ; private double quarters ; private int dollars ;
I want to write a program that ask if you want to go to the movies. If the user type in yes then it'll print out (Alright let go) but if the user type no then it would print (whatever). The trouble that I'm having is. What's the best way to use Boolean and Strings together in a if statement?
public class Night { static Scanner UserInput = new Scanner (System.in); public static void main (String [] args){ boolean user1, user2; user1 = true; user2 = false;
package Week_8; import java.util.Scanner; public class Task_1 { public static void main(String[] args) { Scanner kboard = new Scanner(System.in); int customer_number; String customer; int items; char category;
Exception in thread "AWT-EventQueue-0" java.lang.ClassCastException: java.lang.String cannot be cast to java.lang.Boolean at javax.swing.plaf.synth.SynthTableUI$SynthBooleanTa bleCellRenderer.getTableCellRendererComponent(Synt hTableUI.java:731) at javax.swing.JTable.prepareRenderer(JTable.java:573 1) at javax.swing.plaf.synth.SynthTableUI.paintCell(Synt hTableUI.java:684)
