CODEWITHSUNDEEP
javastringextract
androidcodes
androidcodes

Reputation: 141

To get the value after space in String Java

I have String of values .

Like as 

String line= "cpu  74608   2520   24433   1117073   6176   4054";

i just want to extract these Values and store them in different variables.

Is there any way that i can get the Numeric values after every space ??

Upvotes: 4

Views: 19416

Answers (5)

Syed Danish Haider
Syed Danish Haider

Reputation: 1384

String thisString="Hello world";

String[] parts = theString.split(" ");
String first = parts[0];//"hello"
String second = parts[1];//"World"

Upvotes: 1

Dmitry Ginzburg
Dmitry Ginzburg

Reputation: 7461

One of the options you have is to use String.split method. It accepts regex, so you can skip any number of spaces:

String[] values = line.split("\\s*");

Then you'll have to convert these Strings to the values you need:

int firstNum = Integer.valueOf(values[1]);
// anything like this

If you're OK with storing it as an array/list, but not as different variables, maybe you'll want to extract all numbers this way (Java 8):

int[] numbers = Stream.of(values)
        .filter(str -> str.matches("-?\\d+"))
        .mapToInt(Integer::valueOf)
        .toArray();

Maybe, the easier way would be using Scanner:

Scanner scanner = new Scanner(line);
String firstStr = scanner.next();
int firstNum = scanner.nextInt();
// and so on...

Upvotes: 5

ar4ers
ar4ers

Reputation: 740

Yes you can. Use String.split() and Integer.parseInt() as show below:

    String[] split = line.split("\\s+");
    List<Integer> numbers = new ArrayList<Integer>();
    for (String num: split) {
        try {
            numbers.add(Integer.parseInt(num));
        } catch (NumberFormatException ex) {
            // not a number
        }
    }

Upvotes: 0

James
James

Reputation: 469

You could start off by splitting the data into a array:

String [] lineSplit = line.split("\\s+");

And then begine parsing the data into individual variables:

int foo = 0;
for(int i = 0; i < lineSplit.length; i++) {
    if(lineSplit[i].matches("\\d+") {
        foo = Integer.parseInt(lineSplit[i]);
    }else {
        //Do something else...
    }
}

And repeat the above for different data types and add variable etc. to get the desired result.

Upvotes: 0

mtyurt
mtyurt

Reputation: 3449

    String input = "123 456 123 578";
    String[] numbers = input.split(" ");
    for (String s : numbers) {
        System.out.println(Integer.valueOf(s));
    }

output:

123
456
123
578

Upvotes: 3

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