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package struct;public class BreakDemo { public static void main(String[] args) { int i =0; while (i<100) { i++; System.out.println(i); if (i == 30) { 阅读全文
posted @ 2021-08-25 17:04
AAA编程
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package struct;public class ForDemo05 { public static void main(String[] args) { int[] numbers = {10,20,30,40,50};//定义数组 for (int i = 0; i < 5; i++) { 阅读全文
posted @ 2021-08-25 17:00
AAA编程
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package struct;public class ForDemo04 { public static void main(String[] args) { //1.打印第一列 //2.再用一个循环包起来 //3.去掉重复项 //4.调整样式 for (int j = 0; j <= 9; j+ 阅读全文
posted @ 2021-08-25 16:54
AAA编程
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package struct;public class ForDemo03 { public static void main(String[] args) { //练习2 用while或for循环输出1-1000之间能被5整除的数，并且每行输出3个 for (int i = 0; i < 1000 阅读全文
posted @ 2021-08-25 16:23
AAA编程
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package struct;public class ForDemo02 { public static void main(String[] args) { int oddSum=0; int evenSum=0; for (int i = 0; i < 100; i++) { if(i%2!= 阅读全文
posted @ 2021-08-25 16:16
AAA编程
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package struct;public class WhileDemo02 { public static void main(String[] args) { //计算1+2+3...+100=？ int i =0; int sum =0; while(i<=100){ sum=sum+i; 阅读全文
posted @ 2021-08-25 15:42
AAA编程
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package struct;public class WhileDemo01 { public static void main(String[] args) { int i =0; while (i<100){ i++; System.out.println(i); } }} 阅读全文
posted @ 2021-08-25 15:31
AAA编程
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package struct;import java.util.Scanner;public class IfDemo03_chengji { public static void main(String[] args) { Scanner scanner = new Scanner(System. 阅读全文
posted @ 2021-08-25 14:45
AAA编程
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package struct;public class SwitchDemo01 { public static void main(String[] args) { char grade ='A'; switch (grade){ case 'A': System.out.println("优秀" 阅读全文
posted @ 2021-08-25 14:44
AAA编程
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