CODEWITHSUNDEEP
java
Tom
Tom

Reputation: 23

Strings to String[] in Java

I've method like this, 

public void beforeTest(String a, String b, String c, String d) {
   x = getURL(a, b, c, d);
   --------
   --------
}

I now want to pass String[] instead of individual Strings as arguments type, so tried this,

public void beforeTest(String[] args){
   x = getURL(a, b, c, d);
   --------
   --------
}

and passed a,b,c,d as command line arguments, my code isn't working, is it the right approach?

Thank you all, I did try getURL(args[0].......) approach and unfortunately I'm still getting the same error,

[testng] FAILED CONFIGURATION: @BeforeMethod beforeTest [testng] org.testng.TestNGException: [testng] Method beforeTest requires 1 parameters but 4 were supplied in the @Configuration annotation.

By the way, my getURL method is defined as below, 

protected String getURL(String a, String b, String c, String d) {
   if (condition){
      return a
   } else if (condition) {
      return b
   } ....

Upvotes: 0

Views: 160

Answers (5)

Jorge Campos
Jorge Campos

Reputation: 23361

To do what you need you have to change your method.

public void beforeSuite(String...args){
   x = getURL(args[0], args[1], args[2], args[3]);
   --------
   --------
}

But keep in mind that this definition (String...args) on a method can have N number of arguments, which means that if you pass less than 4 arguments you will get an ArrayIndexOutOfBoundsException.

Upvotes: 0

Sage
Sage

Reputation: 15408

public void beforeSuite(String[] args){
   x = getURL(args[0], args[1], args[2], args[3]);
   --------
   --------
}

But why not give getUrl similar type of signature with parameter type String[]. Then you could again pass the args invoking getUrl(args). You can also declare both method with varargs parameter: beforeSuite(String... args) and getURL(String... args)

Upvotes: 0

m0skit0
m0skit0

Reputation: 25873

I think shortest way to do that is

x = getURL(args);

This will only work if getURL is declared as getURL(String...) or getURL(String[])

Upvotes: 0

Jeroen Vannevel
Jeroen Vannevel

Reputation: 44439

You might want to use varargs instead. It allows you to treat the input as an array and doesn't require the caller to create an array himself.

public void beforeSuite(String... args){
   x = getURL(args[0], args[1], args[2], args[3]);
}

You can call this like this:

beforeSuite("test", "test", "test again", "more tests", "even more tests");
// Notice how I can specify more than 4 (or less, or equal to 4) strings
// without changing the method signature

The major issue is accessing your variables though: args[0] instead of args. args is just an array, but args[0] is a value in the array.

Upvotes: 1

peter.petrov
peter.petrov

Reputation: 39457

Try this.

String a = args[0];
String b = args[1];
String c = args[2];
String d = args[3];

Passing of the 4 strings as command line arguments is OK.

Upvotes: 2

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