CODEWITHSUNDEEP
javastringformatstring-formattingstringbuilder
ilovesomething23
ilovesomething23

Reputation: 27

How to properly format a string with 2 integers in java

I receive a string of form similar to "%value1% - %value2% interval" and I have two integers let's say v1, and v2, and the two values have to substitute the corresponding fields and the String to look in the end "v1 - v2 interval" I tried the following: 

StringBuilder valueBuilder = new StringBuilder();
valueBuilder.append("%value1% - %value2% interval");
ageBuilder.append(String.format(Locale.getDefault(), "%1$d - %2$d interval", value1, value2))

I cannot modify the initial "%value1% - %value2% interval" part of the string! I can only substitute %value1% and %value2% from it that I receive like that

Do you have any suggestions? Thanks!

Upvotes: 0

Views: 806

Answers (3)

MarcoLucidi
MarcoLucidi

Reputation: 2197

using the replace() method:

StringBuilder valueBuilder = new StringBuilder();
int v1 = 10;
int v2 = 20;
valueBuilder.append(
        "%value1% - %value2% interval"
        .replace("%value1%", String.valueOf(v1))
        .replace("%value2%", String.valueOf(v2))
);
System.out.println(valueBuilder);

output:

10 - 20 interval

Upvotes: 0

libanbn
libanbn

Reputation: 270

You can to use specifiers to insert the variables into the string.

int value1 = 1;
int value2 = 2;

StringBuilder valueBuilder = new StringBuilder();
valueBuilder.append(" ");
ageBuilder.append(String.format(Locale.getDefault(), "v%d - v%d interval", value1, value2))

The %d will be replaced with the value1 and value2.


Output from the String.format()

v1 - v2 interval

See more here: https://dzone.com/articles/java-string-format-examples

Upvotes: 1

Neetesh Narvaria
Neetesh Narvaria

Reputation: 107

hope this helps

    int value1 = 11, value2 =12;
    String formattedString = String.format("%s %d - %d", Locale.getDefault(), value1, value2);
    System.out.println(formattedString);

output is

en_US 11 - 12

Upvotes: 0

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