Introduction - If you have any usage issues, please Google them yourself
java implementation calculator, import java.awt.* import java.awt.event.* import javax.swing.* public class JiSuanQi {Frame f Label lab Button [] bt = new Button [29] JTextField t StringBuffer str //display character string displayed double x, y //x and y are the operands int z //Z represents an operator clicks that 0 means " +" , 1 indicates " -" , 2 is " *" , 3 is " /" static double m //number in memory JiSuanQi () {