test3.java

练习java案例

public class Test3
{
	public static void main(String args[])
	{
		int n=0;
		double inc=0.075,sum=1;
		while(sum<=4)
		{
			sum=(1+inc)*sum;
			n++;
			System.out.println("第"+n+"年达到"+sum);
		}
		System.out.println("一共"+n+"年实现翻两番");//一共是四倍
		
	    
	       
	}
}