teaching Java code, Java electronic calculators code for beginners

jsjExample
..........\bak
..........\...\jsjexample
..........\...\..........\Frame1.java~13~
..........\...\..........\Frame1.java~14~
..........\...\..........\Frame1.java~15~
..........\...\..........\Frame1.java~16~
..........\...\..........\Frame1.java~17~
..........\...\..........\Frame1.java~18~
..........\...\..........\Frame1.java~19~
..........\...\..........\Frame1.java~20~
..........\...\..........\Frame1.java~21~
..........\...\..........\Frame1.java~22~
..........\...\..........\LoginFrame2.java~10~
..........\...\..........\LoginFrame2.java~11~
..........\...\..........\LoginFrame2.java~12~
..........\...\..........\LoginFrame2.java~13~
..........\...\..........\LoginFrame2.java~4~
..........\...\..........\LoginFrame2.java~5~
..........\...\..........\LoginFrame2.java~6~
..........\...\..........\LoginFrame2.java~7~
..........\...\..........\LoginFrame2.java~8~
..........\...\..........\LoginFrame2.java~9~
..........\classes
..........\.......\jsjexample
..........\.......\..........\Frame1.class
..........\.......\..........\Frame1_btn0_actionAdapter.class
..........\.......\..........\Frame1_btn1_actionAdapter.class
..........\.......\..........\Frame1_btn2_actionAdapter.class
..........\.......\..........\Frame1_btn3_actionAdapter.class
..........\.......\..........\Frame1_btnclear_actionAdapter.class
..........\.......\..........\Frame1_btnminus_actionAdapter.class
..........\.......\..........\Frame1_btnplus_actionAdapter.class
..........\.......\..........\LoginFrame2.class
..........\.......\..........\LoginFrame2_jButton1_actionAdapter.class
..........\.......\..........\LoginFrame2_jButton2_actionAdapter.class
..........\.......\..........\MainClass$1.class
..........\.......\..........\MainClass.class
..........\.......\package cache
..........\.......\.............\jsjexample.dep2

..........\jsjExample.jpx
..........\jsjExample.jpx.local
..........\jsjExample.jpx.local~
..........\src
..........\...\jsjexample
..........\...\..........\Frame1.java
..........\...\..........\LoginFrame2.java
..........\...\..........\MainClass.java

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