Question: 4. Correct an error by changing only one line. public class Test { int add(int x, int y){ return x+y; Public static void main(String[] args)

4. Correct an error by changing only one line. public class

4. Correct an error by changing only one line. public class Test { int add(int x, int y){ return x+y; Public static void main(String[] args) { add(10,20)

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