JAVA Overview (7) Branch control if switch (Code practice 2)

Public static void main (String [] args ){

Int inVual = 45;

If (inVual> 20 ){
System. out. println ("Young people ");
}
Else if (inVual> 40 ){
System. out. println ("middle-aged ");
}
Else if (inVual> 60 ){
System. out. println ("Elderly ");
}
Else {
System. out. println ("incorrect input, please input again ");
}


Int a = 9, B;
System. out. println ();
B = a> 1? 100: 200;
System. out. println (B );

If (a> 1 ){
B = 100;
System. out. println (B );
} Else {
B = 200;
System. out. println (B );
}

If (inVual> 60 ){
System. out. println ("Elderly ");
}
Else if (inVual> 40 ){
System. out. println ("middle-aged ");
}
Else if (inVual> 20 ){
System. out. println ("Young people ");
} Else {
System. out. println ("Wang chenglong is a pig ");
}


If (inVual> 15 & inVual <21 ){
System. out. println ("Young people ");
}
Else if (inVual> 21 & inVual <46 ){
System. out. println ("middle-aged ");
}
Else if (inVual> 46 & inVual <110 ){
System. out. println ("Elderly ");
}
Else {
System. out. println ("incorrect input. Please input another ···");
}

Char X = '2 ';
Switch (X ){
Case '1 ':
System. out. println ("1 ");
Break;
Case '2 ':{
System. out. println ('2 ');
}
Case '3 ':{
System. out. println ("3 ");
}
Case '4 ':{
System. out. println ("4 ");
Break;
}
Case '5 ':{
System. out. println ("5 ");
Break;
}

Default: System. out. println ("incorrect input, please input again ");
Break;
}

Int ssq = 0 + inVual ++ 100;
System. out. println (ssq );