Question

java array基础编程

Write a program to create a 5*5 2D array of integers and populate it(that means fill in the values) according to the following rule: the (i,j)-th element should have the value|i-j|. So (1,1)-th element should be 0, as should the (2,2)-th, etc; and the (2,4)-th element should be 2.
Print out the array values to show your answers

Answer 1

貌似翻译过来是：写一个二维的数组，五行五列，然后这个数组符合的规则是(i,j)位置的值为i-j的绝对值。可以这样写：
int a[][]=new int[5][5];
for(int i=0;i<5;i++){
for(int j=0;j<5;j++){
a[i][j]=Math.abs(i-j);

}

}
for(int i=0;i<5;i++){
for(int j=0;j<5;j++){
System.out.print(a[i][j]+" ")
}
System.out.println();

}