Insert string in beginning of another string

user_2922388 0
Viewed 192134

How to insert a string enclosed with double quotes in the beginning of the StringBuilder and String?

Eg:

StringBuilder _sb = new StringBuilder("Sam");

I need to insert the string "Hello" to the beginning of "Sam" and O/p is "Hello Sam".

String _s = "Jam";

I need to insert the string "Hello" to the beginning of "Jam" and O/p is "Hello Jam".

How to achieve this?

java string
7 Answers
private static void appendZeroAtStart() {
        String strObj = "11";
        int maxLegth = 5;

        StringBuilder sb = new StringBuilder(strObj);
        if (sb.length() <= maxLegth) {
            while (sb.length() < maxLegth) {
                sb.insert(0, '0');
            }
        } else {
            System.out.println("error");
        }

        System.out.println("result: " + sb);

    }
user_84993160

You can add a string at the front of an already existing one. for example, if I have a name string name, I can add another string name2 by using:

name = name2 + name;

Don't know if this is helpful or not, but it works. No need to use a string builder.

user_186258650
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