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        Scanner skaner = new Scanner(System.in); 
                int[] liczby = new int[3];
                int ilosc=3;
                for(int i=0;i<ilosc;i++){
 
                        liczby[i]=skaner.nextInt();
                }
 
 
                int suma = 0;                
                int max=liczby[0];
                int min=liczby[0];
 
                                for (int i = 0; i < ilosc; i++) {
                                        suma += liczby[i];
                                        if (liczby[i]<min) min=liczby[i];
                                        if (liczby[i]>max) max=liczby[i];
                                }
 
 
                                 System.out.println("Suma twoich liczb wynosi: " + suma+"min:"+min+" max:"+max); 

Main.java:1: error: class, interface, or enum expected
        Scanner skaner = new Scanner(System.in); 
        ^
Main.java:2: error: class, interface, or enum expected
                int[] liczby = new int[3];
                ^
Main.java:3: error: class, interface, or enum expected
                int ilosc=3;
                ^
Main.java:4: error: class, interface, or enum expected
                for(int i=0;i<ilosc;i++){
                ^
Main.java:4: error: class, interface, or enum expected
                for(int i=0;i<ilosc;i++){
                            ^
Main.java:4: error: class, interface, or enum expected
                for(int i=0;i<ilosc;i++){
                                    ^
Main.java:7: error: class, interface, or enum expected
                }
                ^
Main.java:11: error: class, interface, or enum expected
                int max=liczby[0];
                ^
Main.java:12: error: class, interface, or enum expected
                int min=liczby[0];
                ^
Main.java:14: error: class, interface, or enum expected
                                for (int i = 0; i < ilosc; i++) {
                                ^
Main.java:14: error: class, interface, or enum expected
                                for (int i = 0; i < ilosc; i++) {
                                                ^
Main.java:14: error: class, interface, or enum expected
                                for (int i = 0; i < ilosc; i++) {
                                                           ^
Main.java:16: error: class, interface, or enum expected
                                        if (liczby[i]<min) min=liczby[i];
                                        ^
Main.java:17: error: class, interface, or enum expected
                                        if (liczby[i]>max) max=liczby[i];
                                        ^
Main.java:18: error: class, interface, or enum expected
                                }
                                ^
15 errors

Standard output is empty