An archery target consists of a central circle of yellow surrounded by con-centric rings of red, blue, black and white. Each ring has the same width, which is the same as the radius of the yellow circle. Write a programthat draws such a target. Hint: Objects drawn later will appear on top ofobjects drawn earlier.

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Methods of StringBuilder class

The StringBuilder class can be used to create mutable strings. The methods defined in the StringBuilder class are widely used to manipulate and concatenate strings. It is a non-synchronized class which has public methods that can be accessed by multiple threads. It is not thread-safe.