JAVA-while循环

while循环

public class Demo1 {
public static void main(String[] args) {
int i=0;
int sum=0;
while(i<100){
i++;
sum+=i;
}
System.out.println(sum);
}
}

do while循环

public class whileDemo2 {
public static void main(String[] args) {
int i=0;
do{
System.out.println(i);
i++;
}while(i<0);
}

}