For循环到While循环Java

public class example {
public static void main(String[] args) {
int [] numbers={10, 20, 30, 40, 50};
for(int x:numbers){
if(x==30){
break;
}
System.out.print(x);
System.out.print("n");
}
}
}

int[] numbers = {10, 20, 30, 40, 50};    
int i = 0;                               
while (i < numbers.length) {             //iterating till the last element in the array on index
int currentValue = numbers[i];       //storing in a variable for reuse while printing the value
if (currentValue == 30) {            //conditional break in the loop as OP
break;
}
System.out.println(currentValue);    //printing each element in a newline
i++;                                 //incrementing the counter to the next index
}

输出：

10
20