1.循环结构:
代表语句:while,do while,for;
I.while循环:
class WhileDemo
{
public static void main(String[] args)
{
/*
while(条件表达式)
{
执行语句;
}
*/
int x = 1;
while(x<3)
{
System.out.println("x="+x);
x++;
}//这个大括号内容叫做循环体;
}
}
II.do while循环:
class DoWhileDemo
{
public static void main(String[] args)
{
/*
do while语句格式:
do
{
执行语句;
}while(条件表达式);
*/
int x = 1;
do
{
System.out.println("x="+x);
x++;
}while(x<1);
/*
do while特点:是条件无论是否满足,循环体至少执行一次;
*/
int y = 1;
while(y<1)
{
System.out.println("y="+y);
}
}
}