Invert Boolean

Example

Before	After
`private double a; ... public boolean method() { if (a > 15 && a < 100) { a = 5; return true; } return false; }`	`private double a; ... public boolean method() { if (a > 15 && a < 100) { a = 5; return false; } return true; }`
`boolean b = true; ... public double method() { ... b = false; ... }`	`boolean b = false; ... public double method() { ... b = true; ... }`

Before

After

private double a;
...
public boolean method() {
    if (a > 15 && a < 100) {
        a = 5;
        return true;
    }
    return false;
}

private double a;
...
public boolean method() {
    if (a > 15 && a < 100) {
        a = 5;
        return false;
    }
    return true;
}

boolean b = true;
...
public double method() {
    ...
    b = false;
    ...
}

boolean b = false;
...
public double method() {
    ...
    b = true;
    ...
}