breakpro.java

Java就业的培训教程书籍

import java.lang.Math;

public class breakPro{
	public static void main(String args[])
	{
		double sqrtDouble;
		double floorDouble;
		int floorInt;
		int n = 0;
		System.out.println("****100以内的素数****");
		outer:for(int i = 1;i<100;i++){
			sqrtDouble = Math.sqrt(i);
			floorDouble = Math.floor(sqrtDouble);
			floorInt = (int)floorDouble;
			inner1:{
				for(int j=2;j<=floorInt;j++){
					if(i%j==0)
						break inner1;
				}
				System.out.print("  "+i);
				n = n+1;
			}
			inner2:{
				if(n!=10)
					break inner2;
				System.out.println();
				n = 0;
			}
		}
	}
}