Comparing 2 String Values?
Nov 8, 2014
I am trying some exercises on codingbat.com, and am stuck at the following program.
"Given a string, return true if it ends in "ly"."
With the following lines, if I type a print command instead of return, I get "ly". Yet if I aks to compare the result (which is "ly" as I can see with a print command) with == "ly", I get false?
What I also don't get, is that if I tye the programs in javascript, in that language the program works.
String str = "Oddly"
return ((str.substring(str.length()-2))== "ly");
}
View Replies
ADVERTISEMENT
Apr 20, 2014
Ok I am trying to compare a string to see if all characters are unique. If there is a library for this or a better way to approach this do tell. However I find it important to understand what is going on behind the scenes. The issue is that the program counts the spaces '/0' and therefore everything will never be unique.
public class CheckUnique
{
private String sentence = "This will be compard";
private char[] checker;
private String isUnique = "The sentence is unique";
private String notUnique = "The sentence is not unique";
[code]...
View Replies
View Related
Jan 27, 2015
This program accepts Student ID numbers, Name, and grade point average. The problem I am having is with the if else statement that compares id to studentID[x]. I have tried to compare using if(id.equals(studentID[x])) and also I have tried using if(id == (studentID[x])) as shown in the code below. I keep getting incorrect results though.
//FILE: StudentIDArray.java
import javax.swing.*; //Used for the JOption dialog boxes
import java.util.*; //Used for Scanner input
[Code]....
View Replies
View Related
Apr 30, 2014
what will i compare in if statemet is the 1st letter of each if i have code="a" and name="Angelina" first letter of each is "a" and "A" then in convert it to string so that i can make it uppercase but when i compare it in if statement it always go into "not x" but the ouput that im getting is x=A y=A then it always direct me into else statement.
String code = "a";
String name = "Angelina";
char c = code.charAt(0);
char n = name.charAt(0);
[code]...
View Replies
View Related
Mar 7, 2014
I want to compere two element of string array by each other! eventually I want to print Yes or No in matrix . SO, I start reading data from file then split them into two parts .
File file= new File(fileName);
try {
inputStream = new Scanner(file);
while (inputStream.hasNext()){
String data= inputStream.next();
String [] token =data.split(",");
System.out.println("day"+token[0] +"embloyee name:"+ token[1]) ;
}
inputStream.close();
Now I want to compere each cell from token[0] by another array :
String[] day= { "Sunday", "Monday" ................};
if the days are equal then I want print yes in front of the employee name if not then i want to print No..is this gone work with me as I imagine it to be or do I have to take few more steps to get my code going?
View Replies
View Related
Oct 17, 2014
I have the following code:
Java Code:
public class Equals {
String[] s1 = {"red", "white", "black", "blue"};
String[] s2 = {"red", "black", "green"};
String[] s3 = {"red", "green"}; mh_sh_highlight_all('java');
What I need is to give me the following output:
Select Strings: s1,s2,s3
Comparing String s1, s2, s3
red 3 matches.
black 2 matches.
green 2 matches.
View Replies
View Related
Oct 17, 2014
I have the following code:
public class Equals {
String[] s1 = {"red", "white", "black", "blue"};
String[] s2 = {"red", "black", "green"};
String[] s3 = {"red", "green"};
What I need is to give me the following output:
Comparing String s1, s2, s3
red 3 matches.
black 2 matches.
green 2 matches.
View Replies
View Related
Apr 15, 2015
Suppose i have a string which has certain file names, S = "a.png, b.gif, c.xlsx, d.docx, e.xlsx, f.gif";I need to check if the string has more than one .xlsx file names,
View Replies
View Related
May 10, 2014
I'm looking to get two values from this string. I have tried re formatting and with little success. I read this in from a text file and then tried the below code to extract it. I have also tried
{Deposit=100.00, Fees Paid=5.00}
I am just looking to get the 100.00 and the 5.00. I tried using this code below but it separated it into Comma and put it in an array which is probably what im not looking for.
[code]
final Pattern pattern = Pattern.compile("[=st]");
final String[] result = pattern.split(st2);
System.out.println(Arrays.toString(result))
[code]
View Replies
View Related
Apr 9, 2014
What does the line Console[] conList mean? How am I going to access the string values in class consolelist?
class ConsoleInfo
{
private String conTitle;
private double conPrice;
private int conQty;
private String conPic;
[Code] .....
View Replies
View Related
Aug 5, 2014
In Java is there a method which I can use to compare two Strings where in if both the values are null, they should be considered as equal?
View Replies
View Related
May 5, 2014
I'm having an issues with adding integer values to a string list. The question is asking me "the method should iterate over runners, and for each runner generate a random number between 90 and 180 (inclusive) which should be used to set the time (in minutes) for that runner."
I have been able to get the random number and iterating over the runner arraylist but I haven't been able to figure out how to add the values generated into the runners list. I am also using BlueJ.
Here's the whole code I have at the moment:
import java.util.*;
import java.io.*;
import ou.*;
import java.util.Random;
/**
* Write a description of class MarathonAdmin here.
*/
public class MarathonAdmin {
// instance variables - replace the example below with your own
[Code] .....
View Replies
View Related
Oct 25, 2014
I must write a method that accepts a string and returns an int. The method should sum the unicode values of each character, so the string "ABC" should return 198. Also the only string class methods I'm aloud to use are length, charAt, and substring. I just don't know how the get the Unicode value.
View Replies
View Related
Jun 12, 2014
I am trying to match the input string with range of values and getting PatternSyntaxException. below is my code
public static void main(String[] args) {
String regex="01[4-6]";
String code="015";
boolean bool=code.matches(regex);
System.out.println(bool);
}
output: true
But when i try to give range in double digits, it throws exception. What if i have to match a number(as string) between 10 to 25 or like that.
public static void main(String[] args) {
String regex="0[14-16]";
String code="015";
boolean bool=code.matches(regex);
System.out.println(bool);
}
Output:
Exception in thread "main" java.util.regex.PatternSyntaxException: Illegal character range near index 5
0[14-16]
^
View Replies
View Related
Aug 26, 2014
I'm new to java. I have a Product class with getters and setters.
E.g. setProdType & getProdType
I want to store the values from a file into that
StringTokenizer token = new StringTokenizer(line,"**");
while(token.hasMoreElements()) {
int p.setProdType = Integer.parseInt(token.nextElement().toString());
}
View Replies
View Related
Jan 28, 2015
I have a assignment to do some Lexigraphic ordering. I have figured how to get the majority of this done, however, when I input my string values. No output takes place? :s
import java.util.Scanner;
public class Lab03c {
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner lexi = new Scanner (System.in);
String s1,s2;
[Code] ....
View Replies
View Related
Apr 20, 2014
Currently, my program converts Long values to String. And when I test it out, it do print out the correct output. However, when the converted String value is passed over to be written in a text file, it seems that BufferedWriter isn't printing out the outcome that it's supposed to be.
saltVs = Long.toString(saltV);
System.out.print(saltVs); //will print out 79723172
Now the problem is here...It only prints out the last digit of the String value (instead of 79723172).
Here is my FileWriter/BufferedWriter part.
Why is that when I run my program using command prompt, it prints out the output that I wanted, but however when it comes to writing to the file, it doesn't come out right.
View Replies
View Related
Mar 7, 2014
My intention is to see the real reference values (memory locations) of 2 StringBuilder objects as below:
StringBuilder sb2 = new StringBuilder("123");
StringBuilder sb3 = sb2;
System.out.println(sb2);
System.out.println(sb3);
I was expecting a printout like
@S234853
@S984724
But all I got was 123 printed twice. How can i print out the reference values instead of what is inside the StringBuilder object ?
View Replies
View Related
Mar 30, 2014
Let's get it out of the way -- I'm stumped. On something that should be pretty simple to solve. Code follows.
public class Sum {
public static void main(String [] args) {
Double nSum = 0.0;
Double aDouble = 100.0;
for (int i = 0; i < 1000; i++){
nSum += 0.1;
[Code] ....
The output:
100.000000
100.000000
false
false
false
false
false
Process finished with exit code 0
I wrote another simple program and hardcoded the values: aDouble = 100.0; bDouble= 100.0000
Using aDouble.equals(bDouble) returns true, just as one would expect.
So what am I overlooking?
View Replies
View Related
Mar 3, 2015
I have a simple question but I dont understand why I am getting false for this boolean statement.
System.out.println("hash compare " + (trialSearch.returnHash() == fish.returnHash()));
System.out.println("fish.returnHash()" + (fish.returnHash()));
System.out.println("trialSearch.returnHash()" + (trialSearch.returnHash()));
the output is as follow:
hash compare false
fish.returnHash(){T=[1, 2, 3, 5], G=[], A=[0], C=[4]}
trialSearch.returnHash(){T=[1, 2, 3, 5], G=[], A=[0], C=[4]}
why is it printing false for the boolean statment when the two hashmaps contain the same values and keys?
View Replies
View Related
Nov 6, 2013
I'm trying to create an algorithm that compares the first names of two people, which goes ahead and cancels similar characters and then counts the remaining characters to give a 0 if the remaining characters are even and a 1 if the remaining characters odd.
View Replies
View Related
Apr 25, 2015
I am making a program i want String length and compare it that it will be null or not but it gives me error.
View Replies
View Related
Aug 2, 2014
I'm working on a program with the following instructions: Write a class named Octagon that extends GeometricObject and implements the Comparable and Cloneable interfaces. Assume that all 8 sides of the octagon are of equal size. The area can be computed using the following formula
area = (2 + 4/square root of 2) * side * side
Write a program (driver) to read in a series of values from a file, display the area and perimeter, create a clone and compare the object and its clone (based on the area). In addition, your program should compare the current object (just read in) with the first object read in. The program ends when a negative number is read from the file.
My GeometricObject abstract class:
public abstract class GeometricObject {
public abstract double getArea();
public abstract double getPerimeter();
}
My Octagon Class:
public class Octagon extends GeometricObject implements Comparable<Octagon> {
private double side = 1.0;
protected native Object clone() throws CloneNotSupportedException;
public Octagon() {
}
public Octagon(double side) {
super();
[code]....
As you can tell, I've still got a long way to go in the tester class but this is where I'm running into some difficulties.
You'll notice that in the return statement of the toString method in the Octagon class, I put a ? after the "Clone Compare:" portion of the code, what should go here. I've never worked with either the Comparable or Cloneable interfaces before.
How I should create my objects in a way that would give the following sample output.
Object 1: Area: 120.71
Perimeter: 40.0
Clone Compare: Equal
First Compare: Equal
Object 2: Area: 271.60
Perimeter: 60.0
Clone Compare: Equal
First Compare: First is smaller
View Replies
View Related
Jan 24, 2015
I have tried to compare word in same line..instally i divided words using split...after that my move got stopped....
View Replies
View Related
May 24, 2014
I was writing a code to have the library books classified in name, author, area, ed, etc. I'm using NetBeans and it doesn't accuse any error. But when I run the project, it never goes right and shows the books only in one area, regarthless what I type. (The goal of the algorithm is to separate the books in areas (sciences, humanities and biological science).
View Replies
View Related
May 3, 2014
I have to make a program in which users inputs a number and the program should search into a two dimensional array and print out all the values that are below the number This is my first time experimenting with 2D Arrays and how to do this program I have the array set up
String firstarray[][]=
{{"", "Store101", "Store102", "Store103", "Store104"},
{"Tennis Shoes", "102", "54", "20", "78"},
{"Sweaters", "45", "25", "35", "75"},
{"Jeans", "12", "35", "45", "65"},
{"Shorts", "54", "25", "34", "45"},
{"Jackets", "15", "35", "50", "25"}
};
View Replies
View Related
