do-while与while

1.do-while

public class Text1{

public static void main(String[] args){

int i=1;

do{

System.out.println(i);

i+=2;

} while(i<=100);

}

}

2.while

public class Text2{

public static void main(String[] args){

int i=1;

while(i<=100){

i+=2;

System.out.println(i);

}

}

}

do-while先执行命令再判断，while先判断再执行命令。