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The for loop in Java is used to execute a block of code repeatedly for a specified number of times. It consists of three parts: initialization, condition, and update.
Example
for (int i = 0; i < 5; i++) {System.out.println(i);}Gekopieerd.āKopiërenIn this example, the loop starts with i initialized to 0, runs as long as i is less than 5, and increments i by 1 after each iteration.
Nested For Loop
A nested for loop is a for loop inside another for loop. This is useful when you need to perform more complex iterations.
Example
for (int i = 1; i <= 3; i++) {for (int j = 1; j <= 3; j++) {System.out.println("i: " + i + ", j: " + j);}}Gekopieerd.āKopiërenIn this example, the outer loop runs three times, and for each iteration of the outer loop, the inner loop also runs three times.
Important Considerations
Infinite Loop: Be cautious of creating infinite loops by ensuring the condition will eventually become false.
Performance: Nested loops can be computationally expensive, so use them judiciously.
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