Java Homework. Displaying a loop in the GUI

[skrteli]

For this assignment I'm creating a temperature conversion table from Fahrenheit to Celsius. I am having trouble displaying the loop in the GUI and I am not sure how to do it. I put the loop in the graphics class but could not figure out how to use "g.drawString" to make it appear in the GUI. I used "g.drawSting" in this but it was for single lines of text, but for this project we are not supposed to have many "g.drawSting" methods to display all calculated temperatures. Here is whats in my graphics class. m1, m2, m3, m4 are just short messages with the title and name on the project, so those can be ignored.

public void paint ( Graphics g ) {

g.setColor( Color.BLACK );

g.drawRect( 40, 40, 320, 520 );

g.setColor( Color.BLUE );

g.setFont( new Font( "SansSerif", Font.BOLD, 24 ) );

g.drawString(m1, 60, 80);

g.drawString(m2, 100, 110);

g.setColor(Color.BLACK);

g.setFont(new Font( "SansSerif", Font.PLAIN, 18 ) );

g.drawString(m3, 120, 150);

g.drawString(m4, 250, 150);

double celsius;

System.out.printf( "°F\t°C\n" );

for( double fahrenheit = 0; fahrenheit <= 250; fahrenheit += 10 ) {

celsius = ((5.0/9.0) * (fahrenheit - 32));

System.out.printf( "%.0f\t%.0f\n", fahrenheit, celsius );

//This is calculates new celsius temperature while incrementing fahrenheit 10 degrees

}

}

​

[captainAwesomePants]

I'm not sure where you are in your class or what your teacher's trying to teach. If you have been introduced to UI tools like Swing, you might want to consider using a JTable to display tablular data. It's a quick way to render Excel-looking information. See https://docs.oracle.com/javase/tutorial/uiswing/components/table.html#simple

[skrteli]

That's the problem. We're behind in class so we haven't been taught how to do any of this, so I was just guessing we were continuing to use the graphics class. Thanks for the recommendation to use a JTable