如何在 Eclipse Java 调试器中将字节数组显示为十六进制字节或无符号十进制数的数组？

Question

I want to view a byte array in the Eclipse (Helios Release, build id: 20100617-1415) Java debugger as an array of hex bytes (2 digits each) or unsigned decimal numbers? Is that possible? How?

For example, I want to display this:

...as: 0, 48, 71, 22, 139, 166, ...

...or as: 0x00, 0x30, 0x47, 0x16, 0x8B, 0xA6, ...

(This is a similar question to " How do I display a byte array as a char array in the Eclipse Java debugger? ".)

Answer 1

Not exact what you want but as I know in DEBUG MODE, there is an option for primitive Types (int, long,...).

Switch to Debug perspective.
In the Variables view click the "menu" item (triangle item before minimize) and select "Java Primitives...".
In the Dialog you can choose between Hex view, Ascii view and unsigned (for byte).

Found this, maybe help: Inside the Memory View

On 3.7 (and maybe earlier), go into preferences, type "primitive display" in the filtering area, and choose to display hex values.

Answer 2

Updated answer in Eclipse Kepler 4.3:

In the Debug perspective, the Variables tab will have:

• View Menu (a downward triangle),
• Minimize (a line), and
• Maximize (a window) icons in the upper-right corner.

Steps:

• Click on View Menu > Java > Java Preferences... to bring up a menu.
• In this menu select Java > Debug > Primitive Display Options .
• Check Display hexadecimal values and then click OK .
• You should now see hex values in brackets in the Variables tab.

Answer 3

You can add a Watch Expression:

   StringBuilder sb = new StringBuilder();
    for(byte b: buf) {
      sb.append(String.format("%02x, ", b & 0xff));
    }
    sb.setLength(sb.length() - 2);
    return "[" + sb + "]";

Answer 4

在 IntelliJ IDEA 14 中，可以通过Settings → Debugger → Data Views → Java → Show hex values for primes启用在调试器中的数组中显示十六进制值。

Answer 5

For eclipse neon IDE

Displaying values in hexadecimal format

goto Windows -> Preferences -> Java -> Debug -> Primitive Display option -> Display Hexadecimal values(byte,short,char,int,long)

enable the option and press OK

NOTE: This works in debug mode