Nested Loops. It is also possible to place a loop inside another loop. This is called a nested loop. The "inner loop" will be executed one time for each iteration of the "outer loop":

Jan 3, 2025 · Two commonly used loops are the for loop and the enhanced for loop. While they serve similar purposes, their applications and usage vary based on the scenario. Below comparison highlights the major differences between a traditional for loop and an enhanced for loop in Java. Introduced in early Java versions as a basic loop structure.

If a loop exists inside the body of another loop, it's called a nested loop. Here's an example of the nested for loop. // outer loop for (int i = 1; i <= 5; ++i) { // codes // inner loop for(int j = 1; j <=2; ++j) { // codes } ..

Jan 11, 2024 · Example 1: Below program uses a nested for loop to print a 2D matrix. Example 2: Below program uses a nested for loop to print all prime factors of a number.

The for-each loop, introduced in release 1.5, gets rid of the clutter and the opportunity for error by hiding the iterator or index variable completely. The resulting idiom applies equally to collections and arrays: doSomething(e); When you see the colon (:), read it as “in.” Thus, the loop above reads as “for each element e in elements.”

Apr 2, 2021 · The Difference Between For Loop - While Loop - Do-While Loop. There are several differences among the three types of loops in Java, such as the syntax, optimal time to use, condition checking, and so on. The table below represents some of the primary dissimilarities between all the loops in Java.

A nested for loop is a loop inside another loop. The inner loop executes completely every time the outer loop runs one iteration. This is particularly useful for iterating over rows and columns in two-dimensional data structures, or for printing patterns that require multiple levels of iteration.

Apr 2, 2025 · There are four types of loops in Java: All of them support nested loops. Nested-loop constructs are used when two conditions must be met, one depending on the other. For example, if you need to display a two-dimensional matrix, a semi-pyramid or a multiplication table.

Dec 26, 2024 · A Nested for loop in Java is simply a for loop nested inside another for loop. It is mainly used for multi-level iterations.

Similarly, the for loop within the for loop is called as nested for loop. The while loop within the while loop is called as nested while loop. Lets consider a scenario where we require nested loop. Suppose I want to print name list of all students from class 1 - 10 of my school.