摘要：
for (int i = 100; i <= 999; i++) { int geWei, shiWei, baiWei; baiWei = i / 100; shiWei = (i - baiWei * 100) / 10; geWei = i - baiWei * 100 - shiWei * 阅读全文
摘要：
int num = 0; for (int i = 1; i < 1000; i++) { num+=3; if(num>=7){ System.out.println("这只青蛙"+i+"天能爬出这口井！"); break; } num-=2; } 阅读全文
摘要：
for (int i = 1; i <= 5; i++) { for (int k = 1; k <= i; k++) { System.out.print(" "); } for (int j = 1; j <= 8; j++) { System.out.print("*"); } System. 阅读全文
摘要：
// 冒泡排序 int[] a = { 4, 20, 3, 9, 14, 23, 10, 59 }; for (int i = 0; i < a.length - 1; i++) { for (int j = 0; j < a.length - i - 1; j++) { if (a[j] > a[ 阅读全文
摘要：
for (int i = 9; i >= 1; i--) { for (int k = i - 1; k > 0; k--) { System.out.print("\t"); } for (int j = 9; j >= i; j--) { System.out.print(i + "*" + j 阅读全文
摘要：
int sum=0; int ouShu=0; int jiShu=0; int n=0; for (int i = 1; i <= 100; i++) { sum+=i; if(i%2==0){ ouShu+=i; } if(i%2!=0){ jiShu+=i; } if(i%7==0){ n+= 阅读全文
摘要：
1、通过Class的静态方法获取. Class clazz = Class.forName("类名");//将传入的类名所指定的类load到JVM内存中 Method[] methods = clazz.getMethods();//获取该相关类所有的public类型的方法 for (Method 阅读全文