20170105问题解析请点击今日问题下方的"[Java每日一题]20170106"查看(问题解析在公众号首发,公众号ID:weknow619) package Jan2017; public class Ques0106 { public void method01(String... strings, int num){ } public void method02(String... strings, int... is){ } } 今日问题: 以上两个方法使用了变长参数,请问这
20170104问题解析请点击今日问题下方的"[Java每日一题]20170105"查看(问题解析在公众号首发,公众号ID:weknow619) package Jan2017; import java.util.ArrayList; import java.util.List; public class Ques0105 { public static void main(String[] args) { List<String> list = new ArrayList
20161230问题解析请点击今日问题下方的"[Java每日一题]20170103"查看(问题解析在公众号首发,公众号ID:weknow619) package Jan2017; public class Ques0103 { public static void main(String[] args){ System.out.println(delete("你好", "你").equals("好")); System.out
package Dec2016; import java.util.ArrayList; import java.util.List; public class Ques1229 { public static void main(String[] args){ Student stu01 = new Student("001"); Student stu02 = new Student(null); List<Student> students = new ArrayLi
package Dec2016; public class Ques1227 { public static void main(String[] args){ } { c = 1; } int c = 2; int a = b; int b = 3; } 今日问题: 请问主程序输出结果是什么?(点击以下"[Java每日一题]20161227"查看20161226问题解析) 题目原发布于公众号.简书:[Java每日一题]20161227,[Java每日一题]20161227 注:wek
package Dec2016; public class Ques1226 { static{ num = 1; } public static int num = 2; public static void main(String[] args) { System.out.println(num); } } 今日问题: 请问主程序输出结果是什么?(点击以下"[Java每日一题]20161226"查看20161223问题解析) 题目原发布于公众号.简书:[Java每日一题]20161
package Dec2016; public class Ques1223 { public static void main(String[] args){ Integer obj = Integer.valueOf(args[args.length - 1]); int i = obj.intValue(); if (args.length > 1) { System.out.println(i); } if (args.length > 0) { System.out.println(
package Dec2016; import java.util.Random; public class Ques1222 { public static void main(String[] args){ System.out.println("输出常量:"+Test.NUM); } } interface Test{ public static final float NUM = new Random().nextFloat(); } 今日问题: 请问主程序输出的值是不变的吗?
package Dec2016; public class Ques1221 { } class Parent{ public void test(){ System.out.println("Parent test"); } } class Sub extends Parent{ public String test(){ System.out.println("Sub test"); } } 今日问题: 请问主程序是否有编译错误?(点击以下"[Java
package Dec2016; public class Ques1220 { public static void main(String[] args) { Integer num1 = new Integer(100); Integer num2 = new Integer(100); compare(num1, num2); } public static void compare(Integer a, Integer b){ System.out.println(a == b); S
package Dec2016; import java.util.Arrays; public class Ques1219 { public static void main(String[] args) { int num = 2; Dog[] dogs01 = new Dog[num]; // dogs01中有两只狗 for(int i = 0; i < num; i++){ dogs01[i] = new Dog(i, Color.values()[i]); } Dog[] dogs0
package Dec2016; import java.util.ArrayList; import java.util.List; public class Ques1216 { public static void main(String[] args) { List<String> list01 = new ArrayList<String>(); List<Integer> list02 = new ArrayList<Integer>(); Sy
package Dec2016; public class Ques1215 { static final int num1 = 2; static final int num2 = 3; static int num3 = 2; static int num4 = 3; public static void main(String[] args){ int result1 = num1 * num2; // 1 int result2 = num3 * num4; // 2 } } 今日问题: