JAVA笔试题

由于朋友去面试遇到“JAVA 输出左右上下对称的图形” 这道题,特记下以便自己遇到时也能做!哈哈!

public class PrintSymmetrical {

public static void main(String[] args) {

for (int i = 0; i <= 3; i++) {
for (int j = 0; j <= 2 - i; j++) {
System.out.print(" ");
}
for (int k = 0; k <= 2 * i; k++) {
System.out.print("*");
}
System.out.println("");
}

for (int i = 0; i <= 2; i++) {
for (int j = 0; j <= i; j++) {
System.out.print(" ");
}
for (int k = 0; k <= 4 - 2*i; k++) {
System.out.print("*");
}
System.out.println("");
}

System.out.println("+++++++++++++这是分割线+++++++++++++");

int count = 1;

for (int i = 0; i <= 3; i++) {
for (int j = 0; j <= 2 - i; j++) {
System.out.print(" ");
}
for (int k = 0; k <= 2 * i; k++) {
System.out.print(count++);
}
count = 1;
System.out.println("");
}


for (int i = 0; i <= 2; i++) {
for (int j = 0; j <= i; j++) {
System.out.print(" ");
}
for (int k = 0; k <= 4 - 2*i; k++) {
System.out.print(count++);
}
count = 1;
System.out.println("");
}

}

}


输出如下:
[align=center] *
***
*****
*******
*****
***
*
+++++++++++++这是分割线+++++++++++++
1
123
12345
1234567
12345
123
1[/align]
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