Execution order of for loop in java
The execution sequence of the for loop in Java is: 1. Initialize variables, 2. Test conditions, 3. Execute loop body, 4. Update variables, 5. Repeat steps 2-4 until the condition is false.
The execution sequence of for loop in Java:
The for loop in Java is a control structure, used To repeatedly execute a series of statements until a specific condition is met. The execution sequence is as follows:
- Initialize variables: The for loop first initializes one or more loop variables to track the progress of the loop.
- Test the condition: Then, the loop evaluates a conditional expression. If the condition is true, the statements in the loop body are executed.
- Execute the loop body: If the condition is true, execute the statements in the loop body. The body of a loop can contain any number of statements, including other looping or branching statements.
- Update variables: After the loop body is executed, the loop variable will update its value. This usually involves incrementing or decrementing a loop variable.
- Return to step 2: The loop will return to step 2 to evaluate the conditional expression again. If the condition is still true, the loop continues with steps 3 and 4.
- End of loop: If the condition eventually becomes false, the loop will end and control will transfer to the statement following the loop.
Example:
The for loop below will print numbers from 1 to 100:
for (int i = 1; i <= 100; i++) { System.out.println(i); }
In this example:
-
int i = 1;
Initialize loop variablei
to 1. -
i <= 100;
is a conditional expression that tests whetheri
is less than or equal to 100. -
System.out.println(i);
is the loop body, which prints the value ofi
. -
i
Update the loop variable, incrementingi
by 1.
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