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Tag: jpanel

How can you draw rectangles on a JPanel?

I’m trying to create a program that generates rectangles using a slider. The user should be able to move the slider and rectangles should appear on the JPanel above the slider with random positions. I have tried running the program but I’m still unable to display anything, I move the slider but no…

How to scale basic drawings?

I would like to have a list of shapes, that appears in my window. Whenever I’m changing the size of the window, I would like to scale all of my drawings. I already prepared classes, that store information about random shapes in a list (rectangles, ovals, etc.). I have no problem with painting them all, …

JPanel takes the entire space of JFrame

I am struggling to place some simple objects using the FlowLayout manager in Swing. Basically I have created a small program, I have set up the size of the frame, then crated some JLabels and then one JPanel. I have put the JPanel a setSize of 300×300 and changed it’s color to red to visually see i…