摘要： package struct; public class Break { public static void main(String[] args) { for (int i = 0; i < 100; i++) { System.out.println(i); if (i==30){ break 阅读全文

摘要： package struct;public class ForHigh { public static void main(String[] args) { int[] numbers = {10,20,30,40,50};//定义一个数组 //完整方法 for (int i = 0; i <5; 阅读全文

摘要： package struct; public class For { public static void main(String[] args) { int a =1; while (a<100){ a+=2; System.out.println(a); } System.out.println 阅读全文

摘要： package struct; public class DoWhile { public static void main(String[] args) { int a =0; while (a<0){ a++; System.out.println(a);//条件不成立，无法输出内容 } Sys 阅读全文

摘要： package struct; public class While { public static void main(String[] args) { //输出1~100 int a=0; while (a<100){ a++; System.out.println(a); } //计算1+2+ 阅读全文

摘要： package struct; public class Switch { public static void main(String[] args) { //case 穿透 switch 匹配一个具体的值 char grade = 'A'; switch (grade){ case 'A': S 阅读全文

摘要： package struct; import java.util.Scanner; public class One { public static void main(String[] args) { //if单选结构 Scanner scanner = new Scanner(System.in 阅读全文

摘要： package Scanner; import java.util.Scanner; public class highOrder { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); 阅读全文

摘要： package Scanner; import java.util.Scanner; public class next { public static void main(String[] args) { //创建一个扫描器对象，用于接收键盘数据 Scanner scanner = new Sca 阅读全文

摘要： package operator; /** * @author xu * @version 7.7 * @since 1.8 */ public class javaDos { String name; /** * @author xu * @param name * @return * @thro 阅读全文