1.数组赋值练习:
int[] a ={1,2,3,4};
		int[] b;
		b=a;                                                                                                                                                                       
		b[2]=1025;
		System.out.print("数组一");
		for (int i = 0; i <b.length; i++) {
		      System.out.print(b[i]);
		    }
		   System.out.print("    ");
		System.out.print("数组二");
		for(int i=0;i<b.length;i++){
			System.out.print(b[i]);
2.乘法口诀的编写:
int[][] a1=new int[10][10];//声明数组
		for(int i=1;i<a1.length;i++){
			for(int y=1;y<=i;y++){
				a1[i][y]=i*y;
				System.out.print(+i+"*"+y+"="+a1[i][y]+"   ");
			}
			System.out.println("  ");
			}  
3.
原文:http://www.cnblogs.com/adada/p/7019839.html