public static void main(String[] args) { /* * 用for循环 */ int sum= 0;//定义变量计数器 for (int i = 1; i < 100; i++) { if (i%3==0) { sum +=i; } } System.out.println(sum); /* * 用while循环 */ int sum1=0; int i=1; while(i<=100){ if (i%3==0) { sum1 +=i; } i++; } System.out.println(sum1); /* * 用do while循环 */ int j = 1; int sum2 = 0; do { if (j%3==0) { sum2 +=j; } j++; } while (j<=100); System.out.println(sum2); }
public static void main(String[] args) { for (int i = 0; i < 10; i++) { if (i==5) { continue; } System.out.println(i); } }
public static void main(String[] args) { Scanner sca = new Scanner(System.in); System.out.println("输入一个数"); int a = sca.nextInt(); int i = 0; for (i = 0; i < a; i++) { System.out.print(i+"*"); } System.out.println(i); }
public static void main(String[] args) { Scanner sca = new Scanner(System.in); System.out.println("输入成绩"); int a = 0; a = sca.nextInt(); while(true){ if (a>0&&a<=100) { System.out.println("您输入对了"); break; }else{ System.out.println("您输入错了重新输入"); a=sca.nextInt(); } } }
public static void main(String[] args) { int salary = 30000; int sum = 0 ; for (int i = 0; i < 11; i++) { salary+=salary*0.06; sum+=salary; } System.out.println(salary); System.out.println(sum); }