loops Archives - Page 9 of 9

Iterate through a HashMap [duplicate]

Iterate through the entrySet() like so: public static void printMap(Map mp) { Iterator it = mp.entrySet().iterator(); while (it.hasNext()) { Map.Entry pair = (Map.Entry)it.next(); System.out.println(pair.getKey() + ...

April 8, 2022
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How do I apply the for-each loop to every character in a String?

The easiest way to for-each every char in a String is to use toCharArray(): for (char ch: "xyz".toCharArray()) { } This gives you the conciseness of for-each construct, ...

April 7, 2022
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Java compressing Strings

I need to create a method that receives a String and also returns a String. Ex input: AAABBBBCC Ex output: 3A4B2C Well, this ...

April 7, 2022
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What condition does while(true) test? When is it true and false?

When is while(true) true, and when is it false? It’s always true, it’s never false. Some people use while(true) loops and then use break to exit them ...

April 7, 2022
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Bank Account Java Program

I am creating a bank account program for my java class that is suppose to manage up to 5 different bank accounts. The ...

April 5, 2022
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How would I use a while loop to keep requesting user input

Use a while loop above input line as: And, use if condition to break. Also, condition for leap year is wrong in your ...

April 5, 2022
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Create a two dimensional string array anArray[2][2]

Looks like this is what you want int columns = 2; int rows = 2; String newArray = new String[columns][rows]; newArray[0][0] = "France"; ...

April 3, 2022
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How to use a Do-while loop that continuously prompts a user?

(I have a homework question that I’ve been stuck on that concerns “do-while loops” in Java. ) It is asking me to have ...

April 3, 2022
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How do I break out of nested loops in Java?

Like other answerers, I’d definitely prefer to put the loops in a different method, at which point you can just return to stop ...

April 3, 2022
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