Replace certain string in array of strings

Question

let\'s say I have this string array in java

String[] test = {"hahaha lol", "jeng jeng jeng", &quo         


        

Answer 1

for each String you would do a replaceAll("\\s", "%20")

Answer 2

String[] test={"hahaha lol","jeng jeng jeng","stack overflow"};
                for (int i=0;i<test.length;i++) {
                    test[i]=test[i].replaceAll(" ", "%20");
                }

Answer 3

Straight out of the Java docs... String java docs

You can do String.replace('toreplace','replacement').

Iterate through each member of the array with a for loop.

Answer 4

You can use IntStream instead. Code might look something like this:

String[] test = {"hahaha lol", "jeng jeng jeng", "stack overflow"};

IntStream.range(0, test.length).forEach(i ->
        // replace non-empty sequences
        // of whitespace characters
        test[i] = test[i].replaceAll("\\s+", "%20"));

System.out.println(Arrays.toString(test));
// [hahaha%20lol, jeng%20jeng%20jeng, stack%20overflow]

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^{See also: How to replace a whole string with another in an array}

Answer 5

Here's a simple solution:

for (int i=0; i < test.length; i++) {
    test[i] = test[i].replaceAll(" ", "%20");
}

However, it looks like you're trying to escape these strings for use in a URL, in which case I suggest you look for a library which does it for you.

Answer 6

Iterate over the Array and replace each entry with its encoded version.

Like so, assuming that you are actually looking for URL-compatible Strings only:

for (int index =0; index < test.length; index++){
  test[index] = URLEncoder.encode(test[index], "UTF-8");
}

To conform to current Java, you have to specify the encoding - however, it should always be UTF-8.

If you want a more generic version, do what everyone else suggests:

for (int index =0; index < test.length; index++){
    test[index] = test[index].replace(" ", "%20");
}