Day6循环操作代码

等腰三角形
/**

• 等腰三角形
  /
  public class DengYao {
  public static void main(String[] args) {
  for (int i = 1; i <=5 ; i++) {
  for (int k=1; k<=5-i; k++){
  System.out.print(" ");
  }
  for (int j=1; j<=i2-1; j++){
  System.out.print("*");
  }
  System.out.println();
  }

  }
  }
  九九乘法表
  /**

• 九九乘法表
  /
  public class JiuJiu {
  public static void main(String[] args) {
  for (int i = 1; i <= 9; i++) { //外层控制被乘数
  for (int j = 1; j <= i; j++) { //内层控制乘数
  System.out.print(i + “+” + j + “=” + (i * j) + “\t”);
  }
  System.out.println();
  }
  }
  }
  实星菱形
  /*

• 实星菱形
  /
  public class demo08 {
  public static void main(String[] args) {
  for (int i=1;i<=5;i++){
  for (int b=1;b<=5-i;b++) {
  System.out.print(" ");}
  for (int j=1;j<=i2-1;j++){
  System.out.print("");
  }System.out.println();
  }
  for (int a=1;a<=4;a++){
  for (int j=1;j<=a;j++){
  System.out.print(" "); }
  for (int c=1;c<=2(5-a)-1;c++){
  System.out.print("*");
  }System.out.println();
  }
  }
  }
  数字菱形
  /**

• 数字菱形
  /
  public class demo09 {
  public static void main(String[] args) {
  int num=5;
  for (int i=1;i<=5;i++){
  for (int b=1;b<=5-i;b++){
  System.out.print(" ");
  }
  for (int j=1;j<=i2-1;j++){
  System.out.print(num-i);
  }
  System.out.println();
  }
  for (int i=1;i<=4;i++){
  for (int b=1;b<=i;b++){
  System.out.print(" ");
  }
  for (int j=1;j<=2*(5-i)-1;j++){
  System.out.print(i);
  }
  System.out.println();
  }
  }
  }
  空心菱形
  /**

• 空心菱形
  /
  public class demo1 {
  public static void main(String[] args) {
  for (int i=1;i<=5;i++){
  for (int j=1;j<=5-i;j++){
  System.out.print(" ");
  }
  for (int b=1;b<=i2-1;b++){
  if (b1 || bi2-1){
  System.out.print("");
  }else {
  System.out.print(" “);
  }
  }
  System.out.println();
  }
  for (int i=1;i<=4;i++){
  for (int j=1;j<=i;j++){
  System.out.print(” “);
  }
  for (int b=1;b<=2*(5-i)-1;b++){
  if (b1 || b2*(5-i)-1){
  System.out.print(”*");
  }else{
  System.out.print(" ");
  }
  }
  System.out.println();
  }
  }
  }