Incompatible Types Integer Boolean?

Mar 19, 2014

I am trying to write a program to calculate the monthly amount paid for a mortgage and the total amount but i keep getting this errors Attachment 5998

This is my program:

import static java.lang.Math.pow;
import java.io.*;
import java.util.*;
class MyInput
{ static private StringTokenizer stok;
static private BufferedReader br
= new BufferedReader(new InputStreamReader (System.in));
public static int readInt()

[code]....

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Incompatible Types - Int Cannot Be Converted To Boolean

Mar 12, 2015

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

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Incompatible Types For Fname

May 6, 2014

import java.util.Scanner;
class potatoes {
public static void main(String[] args){
Scanner user = new Scanner(System.in);
String fname;
fname = user.nextLine;
String newfname = fname.substring(0, 3);
System.out.println(newfname);
}
}

This bit of code isnt working, it has something to do with incompatible types for fname

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Incompatible Types / Void Cannot Be Converted To Int

Jul 29, 2014

package input;

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

unclosed string literal

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Incompatible Types (Parsing Two-Dimensional Array)

Mar 4, 2015

What the program must do is to parse the string-declared two-dimensional array for the program to compute the student's scores in their quizzes, but I'm having difficulty in anything with Parsing so I don't know what will be the appropriate codes.

Error: incompatible types: String[][] cannot be converted to int[][]

import java.io.*;
public class Quiz3{
public static void main(String[]args)throws IOException{
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String [][]StudQuiz = new String [5][4];

[Code] ....

How am I able to compute the average of the score if the data that is needed to be computed is in the string-declared array?

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Incompatible Types - String Cannot Be Converted To Double

Nov 23, 2014

import java.lang.Math;
import static java.lang.Math.random;
import java.util.Scanner;
public class LineofCoordinates
{
public static void main( String[] args, String x, String random, String exit, String y, String y2, String x2)

[Code] ....

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Incompatible Types - Void Cannot Be Converted To String

Jul 26, 2014

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 ");

[Code] ....

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Incompatible Types Error - String Cannot Be Converted To List

Jan 24, 2015

I am using netbeans and have an error that reads "incompatible types: String cannot be converted to List<String>"

List<List<String>> fileDArr;
fileDArr = new ArrayList<>();
Scanner tempStringScanner;
try {
for (int i = 0; i < FileDirectory.length; i++) {

[code] .....

I don't understand why I am receiving the error. I thought that .next() returned a String?

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Subtract One User Inputted Integer From Another - Bad Operand Types

Mar 6, 2014

I've been working on this problem for a while now and continue to get an error when I try to subtract one user inputted integer from another. It seems to compile fine for adding, dividing, and multiplying. Why it might be making that error and how to resolve it? (As an aside, I have no idea if I did the whole program right but am just trying to figure out why a declared int would come back with an error it's a string.)

import java.util.Scanner;
public class Calculate2
{
public static void main(String[] args)
{
int firstInt;
int secondInt;
int choice;

[Code] ....

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Doing Merge Sort - Incompatible Type

Apr 10, 2014

I am new in java.. I am having a problem when doing merge sort. This is my coding...

Java Code:

import java.util.*;
public class Person
{
public static void main(String[] args)
{
String[] list = {"

[Code] ....

the error is incompatible type at 'sorted = merge(left,right);'

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Can't Seem To Get Value For Integer 1 And Integer 2 To Pass With SetValue Method

Aug 10, 2014

public class MyInteger {
private int value;
public MyInteger(int number){
value = number;
System.out.println("Constructor created with value of " + value);

[code]....

I can't seem to get the value for integer1 and integer2 to pass with the setValue method. I get a runtime error stating the I need to have an int value for these two integers.

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Boolean Cannot Be Converted To Int

Jun 11, 2014

I do not see a boolean trying to be converted into an int. Could my decompiler have caused this?

this.redStones[this.tabIDHover == i].drawSprite(6 + paddingX + ((client.clientSize >= 1) ? 2 : 0) - ((this.longTabs && client.clientSize >= 1) ? 240 : 0) + x, 261 + paddingY + ((this.longTabs && client.clientSize >= 1) ? 37 : 0) - ((client.clientSize == 0) ? 261 : 0));
this.redStones[this.tabIDHover == i + 8].drawSprite(6 + paddingX + ((client.clientSize >= 1) ? 2 : 0) + x, 298 + paddingY);

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Cannot Convert Int To Boolean

Dec 11, 2014

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.

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Odd And Even Numbers With Boolean?

Apr 14, 2014

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;
 
[code]....

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Boolean Return Missing

Sep 25, 2014

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.,

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Boolean Statement Not Working

Apr 14, 2015

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.

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Converting Boolean Into String

Feb 15, 2014

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();
 
[Code] ....

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How To Change Value Of Boolean Within A Method

Dec 1, 2014

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;

[code]....

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Testing Boolean Statement

Mar 30, 2015

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 ;

[code]...

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Default Literal For Boolean

Mar 31, 2014

what is default literal for Boolean data type?

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Using String And Boolean In If Statement?

May 24, 2015

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;

[Code] ....

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Java Error With Boolean To Int

Nov 6, 2014

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;

[Code] .....

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String Cannot Be Cast To Boolean

Apr 6, 2014

JAVA CODE:

package gui.dialog;

import cli.data001;
import java.awt.Color;
import java.awt.Component;
import java.awt.Font;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.util.Vector;

[Code] ....

OUTPUT:

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)

[Code] ....

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Boolean Retrieval Model Using SkipList

Oct 13, 2014

Boolean retrieval model using skiplist. I don't know how to code it. I have modified it but I'm not sure it work out. What are the modifications I can made.

/**My requirement is to implement two methods for Boolean Retrieval:

● index(String dir)
○ index()supposed to go over all files under "dir". There will be no subdirectories inside it.

● retrieve()
○ retrieve() supposed to return name of all the documents under "dir" that satisfies the given query. Note that, only basename of the files are to be returned, not the full path.
○ Query can be of two forms:
■ OR: returned doc should contain at least one term from the query.
■ AND: returned doc should contain all the terms from the query. **/

import java.util.HashSet;
import java.util.Vector;
public class BooleanRetrievalModel implements DocSearch {
// begin private class
private class SkipList {
// Node in skip-list

[Code] ....

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Airline Two Dimensional Boolean Array

Feb 23, 2015

I have a boolean array that looks like this

boolean seat[][] = new boolean[2][3];

I reserved one row for first class and another for economy class. This code works just as I want but my question is how can I loop through it so I don't need all the if statements? I tried it many ways. I tried something like this but I cant get it to work.

for (int row=0;row<seat.length;row++{
for (int col=0;col<seat[row].length;col++){
if (seat[0][col]==false){
seat[0][col]=true;
System.out.println("You have number 0" + row + in first class);

[Code] ......

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Boolean Array And Sorting Elements Within It

May 24, 2014

If I have a boolean array that contains 30 elements (boolean[] fish), how do I go about isolating every 10 elements to use for something specific?

Say there are 30 types of fish stored within the boolean array and 0-9 are fish found specifically in the Indian Ocean, 10-19 are fish found specifically in the Atlantic, and 20-29 are fish specifically found in the Pacific Ocean. And for those 10 fish [0-9], [10-19], [20-29], each is a different color (red, orange, green, blue, white, black, silver, yellow, purple and gold), where the colors and locations of the fish are enum types Colors and Locations.

How do I go about appointing those characteristics to the fish?

Ex: elements [0-9] are fish from the Indian Ocean and [0] is red, [1] is orange, [2] is green, [3] is blue, [4] is white, [5] is black, [6] is silver, [7] is yellow, [8] is purple, and [9] is gold.

elements [10-19] are fish from the Atlantic Ocean and [10] is red, [11] is orange, [12] is green, [13] is blue, [14] is white, [15] is black, [16] is silver, [17] is yellow, [18] is purple, and [19] is gold.

elements [20-29] are fish from the Indian Ocean and [20] is red, [21] is orange, [22] is green, [23] is blue, [24] is white, [25] is black, [26] is silver, [27] is yellow, [28] is purple, and [29] is gold.

Will I need to appoint those characteristics in the constructor after initializing fish = new boolean[30]?

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