打印菱形 (固定行数的)

public static void getRhombus(){for(int i = 1; i <= 7; i++){    //行for(int j = 1; j<= 7; j++){ //列if(i==1 || i==7){if (j==4){System.out.print("*");}else if(j<4){  //只打印星(*)前面的空格,不打印星(*)后面的System.out.print(" ");}}else if(i==2 || i==6){if(j>=3 && j<=5){System.out.print("*");}else if(j<3){System.out.print(" ");}}else if(i==3 || i==5){if(j>=2 && j<=6){System.out.print("*");}else if(j<2){System.out.print(" ");}}else{System.out.print("*");}}System.out.println();}
}