Java - Nested Statements, Switch Statments, and Boolean Operators
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Last updated 4:20 AM on 10/31/22
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4 Terms
1
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Nesting:
Putting one coding structure inside of another coding structure.
Ex: if (condition) {
if ( condition) {
statements;
} else {
statements;
} else {
statements;
}
Ex: if (condition) {
if ( condition) {
statements;
} else {
statements;
} else {
statements;
}
2
New cards
Boolean opperators:
AND = &&
OR = ||
NOT = !
Ex: if (root == 2 || root == -2) {
statements;
}
OR = ||
NOT = !
Ex: if (root == 2 || root == -2) {
statements;
}
3
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If statements with multiple boolean opperators:
These need brackets:
Ex: if ( time == 6.0 || (day.equals ("Sunday") && time == 11.0)) {
Ex: if ( time == 6.0 || (day.equals ("Sunday") && time == 11.0)) {
4
New cards
Switch statement:
Used to have the program make a descicion. The condition for a switch statement must be an integer expression.
int dayOfWeek = 4;
Ex: switch (dayOfWeek) {
case 6:
System.out.println("Today is saturday!");
break;
case 7:
System.out.println("Today is sunday!");
break;
default:
System.out.println("Looking forward to the weekend!");
}
*default statement will print if dayOfWeek is anything other than 6 or 7*
int dayOfWeek = 4;
Ex: switch (dayOfWeek) {
case 6:
System.out.println("Today is saturday!");
break;
case 7:
System.out.println("Today is sunday!");
break;
default:
System.out.println("Looking forward to the weekend!");
}
*default statement will print if dayOfWeek is anything other than 6 or 7*
