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Rhombus.java
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public class Rhombus {
public static void main(String[] args) {
// TODO Auto-generated method stub
//正向实心
for(int i = 0 ; i <= 10 ; i++) {
for(int j = 0 ; j < 10 - i ; j++) {
System.out.print(" ");
}
for(int j=0;j<2*i+1;j++) {
System.out.print("*");
}
System.out.println();
}
//反向
for(int i = 9 ; i >= 0 ; i--) {
for(int j = 0 ; j < 10 - i ; j++) {
System.out.print(" ");
}
for(int j=0;j<2*i+1;j++) {
System.out.print("*");
}
System.out.println();
}
//正向 空心
for(int i = 0 ; i <= 10 ; i++) {
for(int j = 0 ; j < 10 - i ; j++) {
System.out.print(" ");
}
for(int j=0;j<2*i+1;j++) {
if(j == 0 || j == 2 * i ) {
System.out.print("*");
}else {
System.out.print(" ");
}
}
System.out.println();
}
//反向
for(int i = 9 ; i >= 0 ; i--) {
for(int j = 0 ; j < 10 - i ; j++) {
System.out.print(" ");
}
for(int j=0;j<2*i+1;j++) {
if(j == 0 || j == 2 * i ) {
System.out.print("*");
}else {
System.out.print(" ");
}
}
System.out.println();
}
}
}