📄 sqrtoperation.java
字号:
package calculate.operations;
import calculate.Calculate;
import calculate.Operation;
public class SqrtOperation implements Operation {
public void execute(Calculate calculate) {
String showText = calculate.getShowText();
double value = Double.parseDouble(showText);
if (value < 0) {
calculate.setShowText(Calculate.ERROR_FUNCTION_INPUT);
}
calculate.setShowText(Math.sqrt(value) + "");
}
}
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -