Dec 10, 2012 · while (chaCount < len) { String line2 = line.substring(chaCount, 180); System.out.println(line2); chaCount += 180; what do you mean should be divided by 180 characters? your Substring will work like this,

Feb 19, 2012 · String a = keyboard.nextLine(); String b = "done"; String c = "distance"; String d = "fuel"; String e = "refuel"; if (a != b) { while (a != b) { a = keyboard.nextLine(); if (a == c) { ex3.getDistance(); else if (a == d) { ex3.getFuelUsed(); else if (a == e) {

Oct 25, 2013 · I have been trying to construct a while loop for looping through a string when it contains a 'pattern' i'm looking for. The string is a local variable, declared just above the while loop and I am unable to substring it within my while loop, so that each consecutive loop will look at the next part of the string.

In this chapter, you’ll learn how to use while and for loops to add repetition to your code. We’ll also take a first look at String methods and solve some interesting problems. Using a while statement, we can repeat the same code multiple times: int n = 3; while (n > 0) { System.out.println (n); n = n - 1; } System.out.println ("Blastoff!");

Loops can execute a block of code as long as a specified condition is reached. Loops are handy because they save time, reduce errors, and they make code more readable. The while loop loops through a block of code as long as a specified condition is true:

Oct 25, 2023 · To extract a substring in Java, you can use the substring() method of the String class, String subStr = str.substring('startInt', 'endInt'). This method allows you to specify the start and end indices of the substring you want to extract.

Oct 20, 2017 · I am trying to create a method that substrings a string from the occurrence from one word(labelA) to another(labelB) and vice versa. If the string is The Number2 quick Number1 onyx goblin jumps N...

A while loop can be used with the String indexOf method to find certain characters in a string and process them, usually using the substring method. String s = "example" ; int i = 0 ; // while there is an a in s while ( s . indexOf ( "a" ) >= 0 ) { // Find and save the next index for an a i = s . indexOf ( "a" ); // Process the string at that ...

Sep 3, 2024 · In this comprehensive guide, we will delve deeper into the powerful Java substring method, understanding its uses, best practices, and common pitfalls to avoid. By the end, you’ll have a solid grasp of this crucial string manipulation method and how it can help elevate your Java programming skills. What is Java?

Jul 4, 2020 · int startOfSubstring = passedString.indexOf(":") + 1; int endOfSubstring = passedString.indexOf(" ", startOfSubstring); String categories = passedString.substring(startOfSubstring,endOfSubstring); while(startOfSubstring > 0) { System.out.println(categories); startOfSubstring = passedString.indexOf((":") + 1, passedString.indexOf(categories));