Question

java使用 for 循环，输出如下图型：******* ***** *** * * *** ***** *******

Answer 1

int[] temp = {7,5,3,1,1,3,5,7};
for(int i=0;i<temp.lenth;i++){
for(int j=0;j<temp[i];j++){
system.out.print(”*“);
}
system.our.println();
}

Answer 2

public class Test {
public static void main(String args[]) {
for (int i = 7; i > 0; i--) {
if(i % 2 != 0){
for (int j = 0; j < i; j++) {
System.out.print("*");
}
}else{
System.out.print(" ");
}
}
System.out.print(" ");
for (int i = 1; i <=7; i++) {
if(i % 2 != 0){
for (int j = 0; j < i; j++) {
System.out.print("*");
}
}else{
System.out.print(" ");
}
}

}
}

Answer 3

class Print
{
public static void main(String [] args)
{
for(int i = 1; i < 6; i++)
{ for(int j = 0; j < i; j++)
{
System.out.print("*");
}
System.out.print(" ");

}
}
}

楼主试一下，看是否是达到这种效果。

Answer 4

for(i=7;i>0;i-=2){
int m = i;
while(m!=0){
System.out.print("*");
m--;
}
i=i-1;
System.out.print(" ");
}
for(i=1;i<=7;i+=2){
int m = i;
while(m !=0){
System.out.print("*");
m--;
}
i=i-1;
System.out.print(" ");
}

Answer 5

循环控制减2，当是1的时候在执行一个循环，控制加2