帮忙解决一些JAVA编程的题目

import javax.swing.JOptionPane;

public class Ex1 {
public static void main(String[] args){
String nStr=JOptionPane.showInputDialog("Please enter how many numbers you want to operate");
int n=Integer.parseInt(nStr);
int[] array=new int[n];

for(int i=0;i array[i]=100+(int)(Math.random()*900);
System.out.print(array[i]+" ");
}
System.out.println();

int max=array[0];
for(int j=1;j if(array[j]>max){
max=array[j];
}
}

int min=array[0];
for(int k=1;k if(array[k] min=array[k];
}
}

System.out.println("The max number is: "+max);
System.out.println("The min number is: "+min);

}
}

public class Ex2 {
public static void main(String[] args){
int num=1;
int total=0;
int counts=0;
while(num<=100){
if(num%3==0&&num%5!=0&&num%9!=0){
System.out.print(num+" ");
total+=num;
counts++;
}
num++;
}
System.out.println();
System.out.println("平均："+(total/counts));
}

}

public class Ex7 {
public static void main(String[] args){
String nStr=JOptionPane.showInputDialog("Please enter how many numbers you want to show:");
int n=Integer.parseInt(nStr);
for(int i=1;i<=n;i++){
System.out.print(fibinacc(i)+" ");
}
}

public static int fibinacc(int i){
if(i==1||i==2)
return 1;
else return fibinacc(i-2)+fibinacc(i-1);
}

}

public class Ex8 {
public static void main(String[] args){
int num=100;
while(num<1000){
int num1=num%10;
int temp=num/10;
int num2=temp%10;
int num3=num/100;
if(num==(Math.pow(num1,3)+Math.pow(num2,3)+Math.pow(num3,3)))
System.out.print(num+" ");
num++;
}
}

}

import javax.swing.JOptionPane;

public class Ex9{
public static void main(String[] args){
String nStr=JOptionPane.showInputDialog("Please enter how many number");
int n=Integer.parseInt(nStr);

int[] array=new int[n];
for(int i=0;i array[i]=100+(int)(Math.random()*900);
}

bubbleSort(array);

for(int j=0;j if((j+1)%10==0)
System.out.println(array[j]+" ");
else System.out.print(array[j]+" ");
}
}

public static void bubbleSort(int[] array){
boolean changed=true;
do{
changed=false;
for(int i=0;i if(array[i+1] int temp=array[i+1];
array[i+1]=array[i];
array[i]=temp;
changed=true;
}
}
}while(changed);
}

}

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帮你一起做答,

每道给20分还差不多