Replace several character in a string [duplicate]

Question

I want to create a small program where I can enter a string using a scanner, and replace characters. For example, every "a" in the string should be replaced with a "4".

I have this sourcecode:

Scanner s = new Scanner(System.in);
String string = s.nextLine();
System.out.println("Your old text:" + original_string);

string.replace("i", "1");      
string.replace("a", "4");
System.out.println("Your new super awesome text: " + string);

For example, if I input "ia", it should return "14". Unfortunately, this does not happen.

Stack Exchange Broke The Law · Accepted Answer · 2015-01-19 21:26:48Z

5

String.replace doesn't modify the original String. Indeed, Strings can't be modified - all that can happen is that something creates a slightly different String and returns it.

string = string.replace("i", "1");
string = string.replace("a", "4");

answered Jan 19, 2015 at 21:26

Stack Exchange Broke The Law

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Comments

Malik Brahimi · Accepted Answer · 2015-01-19 22:06:38Z

0

You have to reassign the value of the string to the replaced string.

answered Jan 19, 2015 at 22:06

Malik Brahimi

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