[java编程期末复习.docxVIP

编程题：1．编写一个输出Hello World！的程序，用两种方式实现（Application、Applet）。application程序public class a{public static void main(String args[]){System.out.println(Hello World!);}}2、applet程序public class b extends java.applet.Applet{public paint(java.awt.Graphics g){g.outstring(Hello World!,10,10);}}2.求10个数中的最小值并输出。import java.util.Scanner;public class Test { public static void main(String args[]){intnum[]=new int[10];int min;Scanner scan=new Scanner(System.in);System.out.print(请输入10个数字:);for(int i=0; i10; i++){num[i]=scan.nextInt();}min=num[0];for(int i=1; i10; i++){if(minnum[i]) min=num[i];}System.out.println(最小值是+min);}3.建立一个学生类，其中成员变量为学号，姓名，及三门课成绩。另外建立一个包含主方法的类，定义2个学生类的对象，求出这2个学生三门课总分的最高分，并将最高分这个学生的信息输出。class student{ String name,no;floateng,math,chi;public student(String name1,String no1,float eng1,float math1,float chi1){name=name1;no=no1;eng=eng1;math=math1;chi=chi1;}float sum(){return(eng+math+chi);}void print(){System.out.println(name:+name+\t no:+no+\t total:+sum());}}public class max{public static void main(String[] args){student s1=new student(lily,001,80,90,50);student s2=new student(lucy,002,70,70,70);if (s1.sum()s2.sum())s1.print();elses2.print();}}4．请编写一个实现如下功能的Application：比较从键盘输入的两个整数是否相等，并根据比较结果显示“相等”或“不相等”。importjava.util.Scanner;public class COMPare {?public static void main(String args []){???Scanner tr=new Scanner(System.in);???int b=tr.nextInt();???int a=tr.nextInt();???if(a==b)????System.out.println(相等);???else????System.out.println(不相等);??}}5.编写一个Application,利用数组求出”HELLO”,”JAVA””PROGRAM”三个字符串的平均长度。class Average {public static void main(String args[]) {String array[] = new String[3];array[0] = HELLO;array[1] = JAVA;array[2] = PROGRAM;int total = array[0].length();total += array[1].length();total += array[2].length();System.out.println(平均字符串长度为： + total/3);}}6、习题(6_13)：importjava.util.*;class Student{String num;String name;String sex;booleancleader;float math;floatchn;floateng;public Student(String newNum,StringnewName,StringnewSex,booleannewCleader,floatnewMath