Java Basics---Do...while of Java loop Statements (23)

The do...while of the Java Loop statement

The Do...while loop is somewhat similar to the while loop syntax, but the execution process is quite different.

Syntax: 650) this.width=650; "src=" http://img.mukewang.com/536a018100011a0401720070.jpg "/>

Execution process:

<1>, perform the cycle operation first, and then determine if the loop condition is true

<2>, if the conditions are established, continue to implement < 1 >, < 2, until the cycle conditions are not established

Features: first execution, after judgment

Thus, the Do...while statement guarantees that the loop is executed at least once !

For example, still output 1000 times "I adore class net", using Do...while Implementation code: 650) this.width=650; "Src=" http://img.mukewang.com/ 536a01150001976604830150.jpg "/>

Code:

public class HelloWorld {
public static void Main (string[] args) {

int sum = 0; Save 1-50 even-numbered and

int num = 2; Represents an even number between 1-50

do {
Implementing Cumulative summation

Sum=sum+num;
num = num + 2; The value is added 2 for each execution once to determine the next cyclic condition

} while (NUM<=50); Repeat loop when value is met between 1-50

System.out.println (the sum of the even numbers within 50 is: "+ sums);
}
}

Operation Result:

The sum of the even numbers within 50 is: 650

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Java Basics---Do...while of Java loop Statements (23)