Checking If A String Contains Symbols

[SwissR]

Hi guys, I am trying to find out how to check if a string (with a constantly changing value) contains symbols.

I'd like to say If my string (resourceline) contains any of the values ("$, =, ", >, :") || if the resourceline's value already exists within the array then loop back to the main method and continue reading next line.
Else

add to the array.

please can anyone help

would instances of below work
boolean checkContains1=resourceline.contains("$");
boolean checkContains2=resourceline.contains("=");
boolean checkContains3=resourceline.contains(""");
boolean checkContains4=resourceline.contains(">");
boolean checkContains5=resourceline.contains(":");

Example code

/** method to find the value between the beginning and end of a string*/  
    public Find(String fileName, String begin, String end,String whereToWrite) throws java.io.IOException {   
        try {   
            /** read in file */  
            String resourceline = null;   
            ArrayList<String> arrayList = new ArrayList<String>();   
            File myDir = new File("C:/Documents and Settings/Kieren McDonald/Desktop/Nick/Java/Test/resources");   
            if (myDir.exists() && myDir.isDirectory()) {   
                File[] files = myDir.listFiles();   
                for (int i = 0; i < files.length; i++) {   
                    br = new BufferedReader(new FileReader(files[i]));   
                    while ((resourceline = br.readLine()) != null) {   
                        resourceline = find(begin, end, resourceline);   
                        if (resourceline != null) {   
                            resourceline = resourceline.trim();   
                            arrayList.add(resourceline);   
  
                        }   
  
                    }  
                    System.out.println("/**This Is A List Of Includes Within The Component*/");					
                    sortAndPrint(arrayList);
                    System.out.println("/*******This Is The End Of The list Of Includes*******/");					
                    writeResults(arrayList, "C:\\Documents and Settings\\Kieren McDonald\\Desktop\\Nick\\Java\\Test\\filetest.txt");   
                }   
            } else {   
                System.out.println("This is not a directory");   
            }

[PhHein]

To avoid duplicates I'd use a Set rather than a List. Use String.matches() to check if the resourceline contains any of the values.

[SwissR]

Yes but i have to be careful as this is step one of a development in my programme.

For example im just trying this idea below, but the compiler is throwing an error on the if (checkContains1 || checkContains2 || checkContains3|| checkContains4|| !=true) line.

Its telling me that != is an illegal start to an expression, however its not allow ==true either so im a bit stumped at the moment.
Im pretty new to this so im reading articles/documentation as i go through.
I'm hoping im nearly there now.

/** method to find the value between the beginning and end of a string*/  
    public Find(String fileName, String begin, String end,String whereToWrite) throws java.io.IOException {   
        try {   
            /** read in file */  
            String resourceline = null;   
            ArrayList<String> arrayList = new ArrayList<String>();   
            File myDir = new File("C:/Documents and Settings/Kieren McDonald/Desktop/Nick/Java/Test/resources");   
            if (myDir.exists() && myDir.isDirectory()) {   
                File[] files = myDir.listFiles();   
                for (int i = 0; i < files.length; i++) {   
                    br = new BufferedReader(new FileReader(files[i]));   
                    while ((resourceline = br.readLine()) != null) {   
                        resourceline = find(begin, end, resourceline);   
                        if (resourceline != null) {
						    boolean checkContains1=resourceline.contains("$");
							boolean checkContains2=resourceline.contains("=");
							boolean checkContains3=resourceline.contains(">");
							boolean checkContains4=resourceline.contains(":");
							if (checkContains1 || checkContains2 || checkContains3|| checkContains4|| !=true)
							{
							 main();
							}
							if (arrayList.contains(resourceline)){
							 main();
							}
						}
						    else{   
                                 resourceline = resourceline.trim();   
                                 arrayList.add(resourceline);   
  
                                }   
  
                    }  
                    System.out.println("/**This Is A List Of Includes Within The Component*/");					
                    sortAndPrint(arrayList);
                    System.out.println("/*******This Is The End Of The list Of Includes*******/");					
                    writeResults(arrayList, "C:\\Documents and Settings\\Kieren McDonald\\Desktop\\Nick\\Java\\Test\\filetest.txt");   
                }   
            } else {   
                System.out.println("This is not a directory");   
            }

[PhHein]

Get rid of the evaluation:

if (checkContains1 || checkContains2 || checkContains3|| checkContains4)

Why do you have to be careful? You can throw away a few dozen lines of code using a Set and a regex.

[PhHein]

the compiler is throwing an error on the if (checkContains1 || checkContains2 || checkContains3|| checkContains4|| !=true)

And what is

checkContains4|| !=true

supposed to be anyway?

[SwissR]

Apologies, thats a typo. Im wondering if i can use
if (true(checkContains1 || checkContains2 || checkContains3 || checkContains4)) aswel.

public Find(String fileName, String begin, String end,String whereToWrite) throws java.io.IOException {   
        try {   
            /** read in file */  
            String resourceline = null;   
            ArrayList<String> arrayList = new ArrayList<String>();   
            File myDir = new File("C:/Documents and Settings/Kieren McDonald/Desktop/Nick/Java/Test/resources");   
            if (myDir.exists() && myDir.isDirectory()) {   
                File[] files = myDir.listFiles();   
                for (int i = 0; i < files.length; i++) {   
                    br = new BufferedReader(new FileReader(files[i]));   
                    while ((resourceline = br.readLine()) != null) {   
                        resourceline = find(begin, end, resourceline);   
                        if (resourceline != null) {
						    boolean checkContains1=resourceline.contains("$");
							boolean checkContains2=resourceline.contains("=");
							boolean checkContains3=resourceline.contains(">");
							boolean checkContains4=resourceline.contains(":");
							if (!checkContains1 || !checkContains2 || !checkContains3 || !checkContains4)
							{
								public static void main();  
							}
							if (arrayList.contains(resourceline)){
								public static void main();  
							}
						}
						    else{   
                                 resourceline = resourceline.trim();   
                                 arrayList.add(resourceline);   
  
                                }   
  
                    }  
                    System.out.println("/**This Is A List Of Includes Within The Component*/");					
                    sortAndPrint(arrayList);
                    System.out.println("/*******This Is The End Of The list Of Includes*******/");					
                    writeResults(arrayList, "C:\\Documents and Settings\\Kieren McDonald\\Desktop\\Nick\\Java\\Test\\filetest.txt");   
                }   
            } else {   
                System.out.println("This is not a directory");   
            }

[PhHein]

WTF?! Reread reply #4.

[SwissR]

Im using if (checkContains1 || checkContains2 || checkContains3 || checkContains4)
because i already have a regex and the variable for the resourceline is constantly changing. so a pattern of characters are not all going to appear, only one or two will.

Also this is a development of an earlier program i ran except the earlier version pulled resource names, the program i am working on now is to pull out idoc variables.

Once the two seperate programs are completed i am going to integrate them in together. Both use regex's so I am trying to avoid having too many.