Java-while Loop Statement __string

While loop statements are simpler to use than for statements, and are simple in format;

while (judging condition) {
Circulation body
}

public class Whiletest {public
    static void Main (string[] args) {
        int i=1;
        while (i<=10) {
            System.out.println ("Hello" +i);
            i++
        }}
    }

Effect:

Hello 1, Hello
2,
3 Hello
4
Hello 5 Hello 6 Hello 7 Hello 8 Hello 9 Hello 10

Can be used in this way;
while (true) {
Circulation body
}
The advantage of this is that it keeps looping and does not stop.

public class Whiletest {public
    static void Main (string[] args) {
        int i=1;
        while (true) {
            System.out.println ("Hello");}}

Effect:

Hello, hello, hello, hello, hello ...

There is also a doing while with a while, and the difference between the while and the while is the format of the Do while;

do{
Circulation body
}whil (Judgment statement);

The Do while executes the loop-body statement and then evaluates the statement, which means that the loop body statement executes at least once, regardless of whether or not the judgment is true.

public class Whiletest {public
    static void Main (string[] args) {
        int i=1;
        do {
            i++;
            System.out.println (i);
        } while (i<1);
    }
}

Effect:

2