1
我有問題把它們變成gui。有人能幫我嗎?我只是一個想學更多東西的初學者。如何把這些在Java GUI
我的問題是我不知道如何把這個過程放在gui上,因爲for循環語句。我不知道如何在單個jtextfield中輸入很多數字。
這是我的代碼:
public static void main(String[] args) {
int choice, n, temp;
System.out.print("Enter number of elements: ");
Scanner input = new Scanner(System.in);
n = input.nextInt();
int[] a = new int[n];
System.out.println();
System.out.println("Enter " + n + " different non-negative numbers: ");
for(int i=0; i<n; i++)
{
a[i] = input.nextInt();
}
for(int i=0; i<n; i++)
{
for(int j=0; j<n-1; j++)
{
if(a[j]>a[j+1])
{
temp = a[j];
a[j] = a[j+1];
a[j+1] = temp;
}
}
}
System.out.print("The set contains = {");
for(int k=0; k<n; k++)
{
if(k<=n-2)
{
System.out.print(a[k] + ", ");
}
else
{
System.out.println(a[k] + "}");
}
}
System.out.println();
do
{
System.out.println("Pick a relation to see which ordered pairs belong to any of it");
System.out.println("[1] R = {(a,b)|a < b}");
System.out.println("[2] R = {(a,b)|a > b}");
System.out.println("[3] R = {(a,b)|a != b}");
System.out.println("[4] exit");
System.out.print("Enter your choice: ");
choice = input.nextInt();
switch(choice)
{
case 1:
System.out.println("Solution: ");
for(int i=0; i<n; i++)
{
for(int j=0; j<n; j++)
{
if(a[i] < a[j])
{
System.out.print("(" + a[i] + ", " + a[j] + ")");
System.out.println();
}
}
}
System.out.println();
break;
case 2:
System.out.println("Solution: ");
for(int i=n-1 ; i>=0; i--)
{
for(int j=n-1; j>=0; j--)
{
if(a[i] > a[j])
{
System.out.print("(" + a[i] + ", " + a[j] + ")");
System.out.println();
}
}
}
System.out.println();
break;
case 3:
System.out.println("Solution: ");
for(int i=0; i<n; i++)
{
for(int j=0; j<n; j++)
{
if(a[i] != a[j])
{
System.out.print("(" + a[i] + ", " + a[j] + ")");
System.out.println();
}
}
}
System.out.println();
break;
case 4:
System.exit(0);
default:
System.out.println("Invalid input!");
}
}while(choice !=5);
}